When selecting waterproof outdoor storage boxes, durability and weather resistance are key factors. The Devoko 100 Gallon Waterproof Resin Deck Box stands out as the overall best due to its large capacity and sturdy construction. For those seeking a compact yet reliable option, the EasyUp 50 Gallon Waterproof Lockable Storage Box offers portability and ease of use. However, many options trade off between size, lockability, UV resistance, and price. Continue reading to explore how these factors influence performance and value, helping you find the perfect fit for your outdoor storage needs.

15
compared
11
brands
5
colors
320 gallons
max capacity
Which waterproof outdoor storage boxe should you buy?
★ Top Pick
Lifetime 60012 Extra Large Dec
Best Overall for High Capacity and Durability
Massive 130-gallon capacity for substantial outdoor storage
See on Amazon →
Small outdoor spaces or balconies needing secure, weatherproof storage for cushions and garden tools.
30 Gallon Outdoor Deck Box Loc
Compact size fits small patios or balconies
View on Amazon →
Families or individuals needing large, secure outdoor storage that doubles as functional furniture.
Devoko 100 Gallon Waterproof R
Large 100-gallon capacity for extensive storage
View on Amazon →
Homeowners seeking a secure, weatherproof outdoor storage that can double as seating for small to medium spaces.
DRATO 55 Gallon Outdoor Storag
Spacious 55-gallon capacity
View on Amazon →
Large families or outdoor enthusiasts requiring extensive storage that also functions as furniture or decor.
150 Gallon Waterproof Outdoor
Massive 150-gallon capacity
View on Amazon →
Capacity — compared
30 Gallon Outdoor Deck Box Loc30 gallons
Devoko 100 Gallon Waterproof R100 gallons
DRATO 55 Gallon Outdoor Storag55 gallons
150 Gallon Waterproof Outdoor 150 gallons
320 Gallon Outdoor Storage Box320 gallons
Devoko 120 Gallon Outdoor Resi120 gallons
TARKARI 320 Gallon Lockable Re320 gallons
Keter City 30 Gallon Resin Out30 gallons
East Oak 120 Gallon Outdoor St120 gallons
Keter 150 Gallon Resin Large D150 gallons
Greesum 110 Gallon Outdoor Sto110 gallons
Devoko 30 Gallon Resin Deck Bo30 gallons
Greesum Outdoor Storage Box 8282 gallons
EasyUp 50 Gallon Waterproof Lo50 gallons
Pros & cons at a glance
30 Gallon Outdoor Deck Box Loc
✓ Compact size fits small patios or balconies
✗ Lock not included, reducing security level
Devoko 100 Gallon Waterproof R
✓ Large 100-gallon capacity for extensive storage
✗ Heavy when filled, difficult to relocate
DRATO 55 Gallon Outdoor Storag
✓ Spacious 55-gallon capacity
✗ Limited color choice, only black
150 Gallon Waterproof Outdoor
✓ Massive 150-gallon capacity
✗ Heavy to move once filled
320 Gallon Outdoor Storage Box
✓ Massive 320-gallon capacity
✗ Locks are not included, requiring additional purchase
Lifetime 60012 Extra Large Dec
✓ Massive 130-gallon capacity for substantial outdoor storage
✗ Heavy and difficult to move once filled
Devoko 120 Gallon Outdoor Resi
✓ Large 120-gallon capacity for outdoor items
✗ Heavy when filled, making relocation difficult
TARKARI 320 Gallon Lockable Re
✓ Enormous 320-gallon capacity for diverse storage needs
✗ Heavy and bulky, difficult to move frequently
Keter City 30 Gallon Resin Out
✓ Weather-resistant resin construction
✗ Limited capacity for larger items
East Oak 120 Gallon Outdoor St
✓ Large 120-gallon capacity for outdoor storage
✗ Limited color options (only grey)
Keter 150 Gallon Resin Large D
✓ Ample 150-gallon storage capacity
✗ Heavy when filled, difficult to move
Greesum 110 Gallon Outdoor Sto
✓ Large 110-gallon capacity
✗ Assembly can be challenging
Devoko 30 Gallon Resin Deck Bo
✓ Waterproof and UV resistant
✗ Limited internal height and capacity
Greesum Outdoor Storage Box 82
✓ Large 82-gallon capacity
✗ Assembly can be somewhat time-consuming
EasyUp 50 Gallon Waterproof Lo
✓ Spacious 50-gallon capacity
✗ Lock not included, requiring additional purchase

Complete the kit

EASYTEST 7-Way Pool Test Strips, 150 Strips Water Chemica...
EASYTEST 7-Way Pool Test Strips, 150 Strips Water Chemica…
Add to your setup →
AquaChek 7-Way Pool and Spa Test Strips - Silver Pool Tes...
AquaChek 7-Way Pool and Spa Test Strips – Silver Pool Tes…
Add to your setup →
5 in 1 Pool Test Strips, for Water Pool & Hot Tub & Spa &...
5 in 1 Pool Test Strips, for Water Pool & Hot Tub & Spa &…
Add to your setup →

Key Takeaways

  • Large capacity storage boxes tend to be heavier and less portable but offer more space for garden tools and furniture.
  • UV resistance significantly extends the lifespan of resin and plastic storage containers exposed to direct sunlight.
  • Lockable features vary widely; choosing a lockable box enhances security but may add to cost and complexity.
  • Materials like resin and polyethylene balance weatherproofing with lighter weight; metal reinforcements add durability but require maintenance.
  • Price often correlates with size and features, but budget options can still provide reliable waterproofing if chosen carefully.
2
Devoko 100 Gallon Waterproof R
Best for Large Capacity and Versatile Use
1
30 Gallon Outdoor Deck Box Loc
Best Compact Storage with Security
3
DRATO 55 Gallon Outdoor Storag
Best Versatile Storage and Seating

Our Top Waterproof Outdoor Storage Boxes Picks

30 Gallon Outdoor Deck Box Lockable Waterproof Storage Container for Garden Tools and Cushions30 Gallon Outdoor Deck Box Lockable Waterproof Storage Container for Garden Tools and CushionsBest Compact Storage with SecurityCapacity: 30 gallonsMaterial: ResinColor: BlackVIEW LATEST PRICESee Our Full Breakdown
Devoko 100 Gallon Waterproof Resin Deck BoxDevoko 100 Gallon Waterproof Resin Deck BoxBest for Large Capacity and Versatile UseCapacity: 100 gallonsInner Dimensions: 47.8″L x 21.4″W x 24.6″HMaterial: Poly resinVIEW LATEST PRICESee Our Full Breakdown
DRATO 55 Gallon Outdoor Storage Box Waterproof Lockable Resin Deck BoxDRATO 55 Gallon Outdoor Storage Box Waterproof Lockable Resin Deck BoxBest Versatile Storage and SeatingCapacity: 55 gallonsMaterial: ResinColor: BlackVIEW LATEST PRICESee Our Full Breakdown
150 Gallon Waterproof Outdoor Storage Box Resin Deck Box Lockable Patio Furniture Garden Tools150 Gallon Waterproof Outdoor Storage Box Resin Deck Box Lockable Patio Furniture Garden ToolsBest Large-Scale Multi-Function StorageCapacity: 150 gallonsDimensions: 54.25″ x 26.5″ x 24.21″Material: Aggregate resin with wood grain patternVIEW LATEST PRICESee Our Full Breakdown
320 Gallon Outdoor Storage Box Waterproof UV Resistant Lockable Patio Deck Container320 Gallon Outdoor Storage Box Waterproof UV Resistant Lockable Patio Deck ContainerBest for Maximum Capacity and All-Season DurabilityCapacity: 320 gallonsDimensions: 67.88″L x 32.28″W x 33.74″HMaterial: Heavy-duty resinVIEW LATEST PRICESee Our Full Breakdown
Lifetime 60012 Extra Large Deck Box, 130 Gallon, Desert Sand/BrownLifetime 60012 Extra Large Deck Box, 130 Gallon, Desert Sand/BrownBest Overall for High Capacity and DurabilityExterior Dimensions: 5 ft. L x 2 ft. W x 2 ft. 2.5 in. HInterior Capacity: 130 GallonsMaterial: High-density polyethylene (HDPE)VIEW LATEST PRICESee Our Full Breakdown
Devoko 120 Gallon Outdoor Resin Storage Box with BenchDevoko 120 Gallon Outdoor Resin Storage Box with BenchBest for Versatile Use as Storage and SeatingCapacity: 120 gallonsMaterial: Water-resistant resinDesign: Wood-like grainVIEW LATEST PRICESee Our Full Breakdown
TARKARI 320 Gallon Lockable Resin Deck Box, Waterproof & UV-Resistant Outdoor StorageTARKARI 320 Gallon Lockable Resin Deck Box, Waterproof & UV-Resistant Outdoor StorageBest for Large Capacity and VersatilityDimensions: 67.72 in. L x 32.2 in. W x 33.66 in. HCapacity: 320 gallonsMaterial: High-quality resinVIEW LATEST PRICESee Our Full Breakdown
Keter City 30 Gallon Resin Outdoor Storage Box and Patio Side Table, BrownKeter City 30 Gallon Resin Outdoor Storage Box and Patio Side Table, BrownBest for Compact Storage and Multi-Use FunctionalityCapacity: 30 gallonsDimensions: 22.75 in. L x 17.3 in. W x 21.7 in. HMaterial: ResinVIEW LATEST PRICESee Our Full Breakdown
East Oak 120 Gallon Outdoor Storage Box with Reinforced Steel SupportEast Oak 120 Gallon Outdoor Storage Box with Reinforced Steel SupportBest for Reinforced Strength and Easy AssemblyCapacity: 120 gallonsMaterial: Heavy-duty resin with steel reinforcementSupport Weight: 1,000 lbsVIEW LATEST PRICESee Our Full Breakdown
Keter 150 Gallon Resin Large Deck Box for Patio and Outdoor StorageKeter 150 Gallon Resin Large Deck Box for Patio and Outdoor StorageBest Overall for Large Capacity and VersatilityCapacity: 150 gallonsMaterial: ResinColor: BrownVIEW LATEST PRICESee Our Full Breakdown
Greesum 110 Gallon Outdoor Storage Box with Lockable Lid, Dark BlackGreesum 110 Gallon Outdoor Storage Box with Lockable Lid, Dark BlackBest for Security and Versatile UseCapacity: 110 gallonsMaterial: Fade-resistant PPColor: Dark BlackVIEW LATEST PRICESee Our Full Breakdown
Devoko 30 Gallon Resin Deck Box Waterproof Outdoor Storage for Patio Furniture and Garden ToolsDevoko 30 Gallon Resin Deck Box Waterproof Outdoor Storage for Patio Furniture and Garden ToolsBest for Compact, Lightweight Storage and SeatingCapacity: 30 gallonsDimensions: 22 x 16 x 20 inchesMaterial: High density resinVIEW LATEST PRICESee Our Full Breakdown
Greesum Outdoor Storage Box 82 Gallon Waterproof and UV Resistant Storage Bin with LidGreesum Outdoor Storage Box 82 Gallon Waterproof and UV Resistant Storage Bin with LidBest for Secure, Multi-Purpose Storage with SeatingCapacity: 82 gallonsMaterial: ResinColor: BlackVIEW LATEST PRICESee Our Full Breakdown
EasyUp 50 Gallon Waterproof Lockable Outdoor Storage Box with HandlesEasyUp 50 Gallon Waterproof Lockable Outdoor Storage Box with HandlesBest for Easy Assembly and PortabilityCapacity: 50 gallonsMaterial: ResinWeight Capacity: 300 lbsVIEW LATEST PRICESee Our Full Breakdown
Specs at a glance
waterproof outdoor storage boxeMaterialCapacityColor
30 Gallon Outdoor Deck Box LocResin30 gallonsBlack
Devoko 100 Gallon Waterproof RPoly resin100 gallonsRattan pattern
DRATO 55 Gallon Outdoor StoragResin55 gallonsBlack
150 Gallon Waterproof Outdoor Aggregate resin with wood grain pattern150 gallons
320 Gallon Outdoor Storage BoxHeavy-duty resin320 gallons
Lifetime 60012 Extra Large DecHigh-density polyethylene (HDPE)
Devoko 120 Gallon Outdoor ResiWater-resistant resin120 gallons
TARKARI 320 Gallon Lockable ReHigh-quality resin320 gallons
Keter City 30 Gallon Resin OutResin30 gallonsBrown
East Oak 120 Gallon Outdoor StHeavy-duty resin with steel reinforcement120 gallonsGrey
Keter 150 Gallon Resin Large DResin150 gallonsBrown
Greesum 110 Gallon Outdoor StoFade-resistant PP110 gallonsDark Black
Devoko 30 Gallon Resin Deck BoHigh density resin30 gallons
Greesum Outdoor Storage Box 82Resin82 gallonsBlack
EasyUp 50 Gallon Waterproof LoResin50 gallons

More Details on Our Top Picks

  1. 30 Gallon Outdoor Deck Box Lockable Waterproof Storage Container for Garden Tools and Cushions

    30 Gallon Outdoor Deck Box Lockable Waterproof Storage Container for Garden Tools and Cushions

    Best Compact Storage with Security

    View Latest Price

    This 30-gallon resin deck box stands out for its compact size, making it ideal for smaller patios or balconies where space is limited. Compared to larger options like the Devoko 100 Gallon Deck Box, it offers less capacity but excels in easy, tool-free assembly and a lockable feature for basic security. While it doesn’t include a lock, its weather-resistant materials protect outdoor essentials from rain and UV rays, though its smaller size limits storage for bulkier items. The black resin finish provides a neutral look that suits most outdoor decor styles. Tradeoffs include the absence of a lock and limited color options, but for those prioritizing quick setup and security in a tight space, this is a reliable choice.

    Pros:
    • Compact size fits small patios or balconies
    • Lockable design enhances security
    • Easy, tool-free assembly
    • Waterproof and UV-resistant for outdoor durability
    Cons:
    • Lock not included, reducing security level
    • Limited capacity unsuitable for bulky items
    • Color options are few

    Best for: Small outdoor spaces or balconies needing secure, weatherproof storage for cushions and garden tools.

    Not ideal for: Homeowners wanting to store larger outdoor equipment or pool accessories, as capacity is limited.

    • Capacity:30 gallons
    • Material:Resin
    • Color:Black
    • Features:Lockable, waterproof, weatherproof, UV-resistant, impact-resistant
    • Assembly:Tool-free
    • Lock Included:No
    Our verdict
    “This pick is perfect for those with limited space seeking a secure, weatherproof container for small outdoor essentials.”
  2. Devoko 100 Gallon Waterproof Resin Deck Box

    Devoko 100 Gallon Waterproof Resin Deck Box

    Best for Large Capacity and Versatile Use

    View Latest Price

    The Devoko 100 Gallon Deck Box offers substantial storage, making it suitable for families with extensive outdoor gear. Unlike smaller boxes like the 30 Gallon Resin Box, it provides enough space for cushions, tools, and pool accessories. Its modern rattan design adds aesthetic appeal, and the lockable lid offers security. The bench feature supports two people, adding functionality, but its weight can be a challenge when filled, and assembly may require patience. While its style may not suit all outdoor decor, its durability and capacity are hard to beat for larger outdoor storage needs. Tradeoffs include its weight and the potential mismatch with certain garden aesthetics.

    Pros:
    • Large 100-gallon capacity for extensive storage
    • Weather-resistant, durable poly resin material
    • Can serve as a bench for seating
    • Lockable lid for added security
    Cons:
    • Heavy when filled, difficult to relocate
    • Requires assembly, which can be time-consuming
    • Design may not match all outdoor styles

    Best for: Families or individuals needing large, secure outdoor storage that doubles as functional furniture.

    Not ideal for: Those with limited mobility or space, as it may be cumbersome to move once filled.

    • Capacity:100 gallons
    • Inner Dimensions:47.8″L x 21.4″W x 24.6″H
    • Material:Poly resin
    • Weight Capacity (bench):500 lbs
    • Features:Lockable lid, gas rods, side handles
    • Color:Rattan pattern
    Our verdict
    “Ideal for users needing large-volume storage that combines functionality with security, despite its weight and assembly needs.”
  3. DRATO 55 Gallon Outdoor Storage Box Waterproof Lockable Resin Deck Box

    DRATO 55 Gallon Outdoor Storage Box Waterproof Lockable Resin Deck Box

    Best Versatile Storage and Seating

    View Latest Price

    The DRATO 55 Gallon Storage Box offers a middle ground between capacity and functionality. Compared with the 30 Gallon Box, it provides more space for cushions and tools, with a lockable feature that adds security. Its weatherproof resin ensures protection against rain and UV rays. The ability to support up to 300 pounds makes it useful as a bench, similar to the Devoko 100 Gallon, but with less capacity. While it’s easy to assemble and maintain, its limited color options and weight when full are considerations. This box makes sense for users who want a secure, multi-purpose outdoor storage solution in a manageable size.

    Pros:
    • Spacious 55-gallon capacity
    • Weatherproof and durable resin construction
    • Supports up to 300 lbs as a bench
    • Lockable for security
    Cons:
    • Limited color choice, only black
    • Potentially heavy when filled
    • Some assembly required

    Best for: Homeowners seeking a secure, weatherproof outdoor storage that can double as seating for small to medium spaces.

    Not ideal for: Those needing to store large or bulky items frequently, due to its smaller capacity compared to larger models.

    • Capacity:55 gallons
    • Material:Resin
    • Color:Black
    • Weatherproof:Yes
    • Lockable:Yes
    • Assembly:Easy
    Our verdict
    “A solid choice for users wanting a versatile, secure outdoor storage solution that also functions as seating.”
  4. 150 Gallon Waterproof Outdoor Storage Box Resin Deck Box Lockable Patio Furniture Garden Tools

    150 Gallon Waterproof Outdoor Storage Box Resin Deck Box Lockable Patio Furniture Garden Tools

    Best Large-Scale Multi-Function Storage

    View Latest Price

    The Greesum 150 Gallon Storage Box combines a large capacity with multi-functionality. Unlike the smaller 55 Gallon models, it offers ample space for extensive outdoor gear, cushions, and even small furniture items. Its weather-resistant resin with a wood grain pattern elevates visual appeal, and its snap-on assembly simplifies setup. The ability to serve as a seat or side table makes it highly adaptable. However, its weight when filled can hinder mobility, and limited color options may not suit all tastes. This option is best suited for those needing substantial storage without sacrificing style or functionality.

    Pros:
    • Massive 150-gallon capacity
    • Weatherproof, UV-resistant, and fade/warp resistant
    • Multi-functional as storage, seat, or side table
    • Easy snap-on assembly
    Cons:
    • Heavy to move once filled
    • Limited color options, only black
    • Size may be too large for small patios

    Best for: Large families or outdoor enthusiasts requiring extensive storage that also functions as furniture or decor.

    Not ideal for: Users with limited space or mobility concerns, as it can be heavy and bulky when filled.

    • Capacity:150 gallons
    • Dimensions:54.25″ x 26.5″ x 24.21″
    • Material:Aggregate resin with wood grain pattern
    • Weather Resistance:Waterproof, UV resistant
    • Assembly:Snap-on
    Our verdict
    “Perfect for those with ample outdoor space seeking a large, multi-purpose storage solution that combines practicality with style.”
  5. 320 Gallon Outdoor Storage Box Waterproof UV Resistant Lockable Patio Deck Container

    320 Gallon Outdoor Storage Box Waterproof UV Resistant Lockable Patio Deck Container

    Best for Maximum Capacity and All-Season Durability

    View Latest Price

    The Greesum 320 Gallon Storage Box leads in capacity, ideal for those with extensive outdoor storage needs. Its heavy-duty resin construction offers high UV resistance, making it suitable for year-round use, unlike smaller or less weather-resistant options. Its lockable lid adds security, though the lack of included locks means extra purchase may be necessary. Compared to the 150 Gallon Model, this provides nearly double the space but also requires more effort to move due to its weight. Its size and durability make it best suited for large patios, decks, or commercial settings where maximum storage and weatherproofing matter most.

    Pros:
    • Massive 320-gallon capacity
    • Heavy-duty resin, UV-resistant for over 1,000 hours
    • Waterproof and lockable design
    • Easy to assemble without tools
    Cons:
    • Locks are not included, requiring additional purchase
    • Heavy when full, difficult to relocate
    • Size may be excessive for small outdoor areas

    Best for: Large outdoor spaces needing substantial, secure, and weatherproof storage for all-season use.

    Not ideal for: Small patios or users with limited mobility, given its weight and size.

    • Capacity:320 gallons
    • Dimensions:67.88″L x 32.28″W x 33.74″H
    • Material:Heavy-duty resin
    • UV Resistance:Over 1,000 hours
    • Lock:Lockable (locks not included)
    Our verdict
    “This model is best for large, durable storage needs where maximum capacity and weather resistance are priorities, despite its weight.”
  6. Lifetime 60012 Extra Large Deck Box, 130 Gallon, Desert Sand/Brown

    Lifetime 60012 Extra Large Deck Box, 130 Gallon, Desert Sand/Brown

    Best Overall for High Capacity and Durability

    View Latest Price

    This oversized storage box stands out for its massive 130-gallon capacity, making it ideal for families needing to store large outdoor items like cushions, tools, and seasonal gear. Its high-density polyethylene (HDPE) construction offers excellent weather resistance and UV stability, comparable to the East Oak 120 Gallon model but with a more traditional design. The lockable lid and spring hinge provide both security and ease of access, yet its weight and size make it cumbersome to move once filled. Unlike smaller options like the Keter City 30 Gallon, this model prioritizes capacity over portability. It’s best suited for permanent outdoor storage spaces rather than frequent relocations.

    Pros:
    • Massive 130-gallon capacity for substantial outdoor storage
    • Durable HDPE resists weather and UV damage
    • Lockable lid with spring hinge for safety and ease of use
    • Heavy-duty hinges and construction ensure longevity
    Cons:
    • Heavy and difficult to move once filled
    • Requires significant space for full operation
    • Limited color options restrict aesthetic flexibility

    Best for: Large households or property owners seeking extensive, durable outdoor storage that stays put

    Not ideal for: Individuals needing a lightweight, portable solution or limited outdoor space

    • Exterior Dimensions:5 ft. L x 2 ft. W x 2 ft. 2.5 in. H
    • Interior Capacity:130 Gallons
    • Material:High-density polyethylene (HDPE)
    • Hinges:Powder-coated steel
    • Lockable:Yes
    Our verdict
    “This deck box is perfect for those needing high-capacity, durable outdoor storage that remains stationary.”
  7. Devoko 120 Gallon Outdoor Resin Storage Box with Bench

    Devoko 120 Gallon Outdoor Resin Storage Box with Bench

    Best for Versatile Use as Storage and Seating

    View Latest Price

    Compared with the Lifetime deck box, the Devoko 120 Gallon model offers a similar capacity but adds the benefit of dual functionality as a bench and decorative piece. Its water-resistant resin construction ensures weatherproof storage, ideal for moderate climates. The reinforced sides and hydraulic hinge promote safety and durability, though it can be heavy when filled, similar to the East Oak 120-gallon option. Unlike the larger TARKARI or East Oak models, this is more suited for smaller, more manageable outdoor spaces where seating is also valued. It’s a strong choice for patio furniture combined with storage, but less ideal for those needing maximum capacity or ease of movement.

    Pros:
    • Large 120-gallon capacity for outdoor items
    • Water-resistant resin withstands weather
    • Can serve as a sturdy bench or decorative element
    • Reinforced for added stability and safety
    Cons:
    • Heavy when filled, making relocation difficult
    • Limited color options
    • Less capacity than larger models like TARKARI or East Oak

    Best for: Homeowners who want a functional, attractive outdoor storage solution that doubles as seating

    Not ideal for: Users with large storage needs or limited space for furniture functionality

    • Capacity:120 gallons
    • Material:Water-resistant resin
    • Design:Wood-like grain
    • Features:Hydraulic hinge, lockable
    • Reinforcement:Reinforced sides
    Our verdict
    “Ideal for outdoor spaces where storage must also serve as functional furniture, but less suited for large-scale storage needs.”
  8. TARKARI 320 Gallon Lockable Resin Deck Box, Waterproof & UV-Resistant Outdoor Storage

    TARKARI 320 Gallon Lockable Resin Deck Box, Waterproof & UV-Resistant Outdoor Storage

    Best for Large Capacity and Versatility

    View Latest Price

    The TARKARI 320 Gallon model surpasses the others in capacity, making it suitable for storing a wide range of outdoor items, from cushions to garden equipment. Its waterproof and UV-resistant resin ensures durability in harsh weather, outperforming smaller or less resistant options like the Keter City 30 Gallon. Handles and lockable lid add convenience and security, while its ability to double as a seat or table enhances outdoor functionality. However, its size and weight can be a challenge for those needing frequent movement or limited space. Compared with the East Oak 120 Gallon, it offers nearly triple the capacity but at a heftier footprint, making it less portable.

    Pros:
    • Enormous 320-gallon capacity for diverse storage needs
    • Waterproof and UV-resistant for outdoor durability
    • Lockable lid enhances security
    • Handles facilitate transportation
    Cons:
    • Heavy and bulky, difficult to move frequently
    • Limited color options (only black)
    • Requires ample space for setup and use

    Best for: Large families or commercial outdoor spaces needing substantial, versatile storage

    Not ideal for: Small patios or users prioritizing portability over capacity

    • Dimensions:67.72 in. L x 32.2 in. W x 33.66 in. H
    • Capacity:320 gallons
    • Material:High-quality resin
    • Weight Capacity:1000 pounds
    • Lockable:Yes
    Our verdict
    “Best suited for users needing maximum storage volume combined with weather resistance and versatility, regardless of mobility concerns.”
  9. Keter City 30 Gallon Resin Outdoor Storage Box and Patio Side Table, Brown

    Keter City 30 Gallon Resin Outdoor Storage Box and Patio Side Table, Brown

    Best for Compact Storage and Multi-Use Functionality

    View Latest Price

    Compared to larger models like the TARKARI or East Oak, the Keter City offers a smaller 30-gallon capacity, making it ideal for storing small outdoor essentials such as beach towels or garden tools. Its resin build provides weather resistance, and its dual function as a side table or ottoman adds flexibility to small patios or balcony setups. The ease of assembly without tools makes it accessible for quick setup, but its limited interior space means it’s not suited for bulky or large items. For those with minimal storage needs or tight spaces, it offers a practical, space-saving solution, though it doesn’t match the capacity of larger boxes.

    Pros:
    • Weather-resistant resin construction
    • Versatile as storage or furniture
    • Easy, tool-free assembly
    • Compact size fits small spaces
    Cons:
    • Limited capacity for larger items
    • Not suitable for heavy loads
    • Less protection for bulky outdoor gear

    Best for: Urban dwellers or small-space users looking for compact, multi-functional outdoor storage

    Not ideal for: Those with large outdoor storage needs or heavy bulky items

    • Capacity:30 gallons
    • Dimensions:22.75 in. L x 17.3 in. W x 21.7 in. H
    • Material:Resin
    • Color:Brown
    • Interior Dimensions:22.71 in. L x 16.3 in. W x 20.3 in. H
    Our verdict
    “Perfect for small outdoor spaces needing a combination of storage and furniture without bulk or heavy lifting.”
  10. East Oak 120 Gallon Outdoor Storage Box with Reinforced Steel Support

    East Oak 120 Gallon Outdoor Storage Box with Reinforced Steel Support

    Best for Reinforced Strength and Easy Assembly

    View Latest Price

    The East Oak 120 Gallon unit shares capacity with the Devoko but adds reinforced steel support for enhanced strength, making it a reliable choice in harsher weather conditions. Its UV-resistant resin and quick 15-minute assembly make it a practical, durable option for outdoor storage. While it offers similar capacity to the Devoko, the steel reinforcement provides extra peace of mind for heavier or more frequent use. Compared with the TARKARI 320 Gallon, it’s less voluminous but more manageable for typical backyard setups. Its grey color and reinforced support set it apart as a sturdy, easy-to-assemble choice for medium-sized outdoor storage needs.

    Pros:
    • Large 120-gallon capacity for outdoor storage
    • Steel reinforcement enhances durability and support
    • UV-resistant resin withstands sun exposure
    • Simple 15-minute assembly process
    Cons:
    • Limited color options (only grey)
    • Still relatively heavy when filled
    • Less capacity than the TARKARI 320 Gallon

    Best for: Homeowners seeking a balance of capacity, durability, and quick setup in moderate climates

    Not ideal for: Those needing maximum capacity or a highly portable option

    • Capacity:120 gallons
    • Material:Heavy-duty resin with steel reinforcement
    • Support Weight:1,000 lbs
    • Color:Grey
    • UV-Resistant:Yes
    • Assembly Time:15 minutes
    Our verdict
    “A strong, easy-to-assemble outdoor storage box suited for medium-capacity needs with reinforced durability.”
  11. Keter 150 Gallon Resin Large Deck Box for Patio and Outdoor Storage

    Keter 150 Gallon Resin Large Deck Box for Patio and Outdoor Storage

    Best Overall for Large Capacity and Versatility

    View Latest Price

    This deck box stands out for its impressive 150-gallon capacity, making it ideal for families needing to store a wide range of outdoor items. Its weather-resistant resin construction ensures longevity, even in harsh conditions, while the dual-purpose design allows it to serve as both storage and extra seating. Unlike smaller models like the Devoko 30 Gallon Resin Deck Box, this offers much more space, though its weight can make relocation challenging once filled. The hydraulic pistons provide smooth operation, but the resin finish isn’t as authentic-looking as wood, limiting aesthetic appeal for some. Overall, it’s a reliable choice for those prioritizing capacity and durability, willing to handle the weight.

    Pros:
    • Ample 150-gallon storage capacity
    • Weatherproof and durable resin material
    • Dual-use as seating and storage
    • Hydraulic pistons for easy lid access
    Cons:
    • Heavy when filled, difficult to move
    • Resin may lack the authentic look of real wood

    Best for: Large families or outdoor spaces needing high-volume storage combined with seating options

    Not ideal for: Individuals seeking lightweight, portable options or authentic wood aesthetics

    • Capacity:150 gallons
    • Material:Resin
    • Color:Brown
    • Features:Weatherproof, Lockable, Hydraulic Pistons, Easy Assembly
    Our verdict
    “This model is best for those who need large-scale outdoor storage and seating with minimal concern for weight or aesthetic authenticity.”
  12. Greesum 110 Gallon Outdoor Storage Box with Lockable Lid, Dark Black

    Greesum 110 Gallon Outdoor Storage Box with Lockable Lid, Dark Black

    Best for Security and Versatile Use

    View Latest Price

    Compared with the Keter 150-gallon model, the Greesum 110-gallon box offers a slightly smaller capacity but excels in security features and aesthetic versatility. Its UV-resistant, fade-proof PP material ensures long-term appearance and weather resistance, making it suitable for moderate climates. The lockable lid adds a layer of security, unlike the Devoko 30-gallon model, which has a basic design. Its ability to serve as a bench or side table adds functional value, but assembly can be tricky if instructions are unclear, and its weight may still require assistance. This makes it a solid choice for those wanting a secure, multi-purpose storage solution in a manageable size.

    Pros:
    • Large 110-gallon capacity
    • UV-resistant and fade-proof material
    • Lockable lid for added security
    • Can double as a bench or side table
    Cons:
    • Assembly can be challenging
    • Heavy when filled, requiring help to move

    Best for: Homeowners needing secure, multi-functional outdoor storage with moderate capacity

    Not ideal for: Users requiring very large capacity or lightweight portability

    • Capacity:110 gallons
    • Material:Fade-resistant PP
    • Color:Dark Black
    • Weather Resistance:UV-resistant, waterproof
    • Assembly:Tool-free, quick setup
    Our verdict
    “This is ideal for those who want secure, versatile outdoor storage that doubles as furniture without excessive size or weight.”
  13. Devoko 30 Gallon Resin Deck Box Waterproof Outdoor Storage for Patio Furniture and Garden Tools

    Devoko 30 Gallon Resin Deck Box Waterproof Outdoor Storage for Patio Furniture and Garden Tools

    Best for Compact, Lightweight Storage and Seating

    View Latest Price

    Outpacing smaller options like the EasyUp 50 Gallon box in capacity, the Devoko 30-gallon deck box is lightweight and easy to handle, thanks to its high-density resin construction. It’s an excellent choice for users who need quick, portable storage without sacrificing waterproofing or UV resistance. Its capacity, however, limits its use for larger items or bulkier equipment, making it less suitable for those with extensive storage needs. The lockable lid offers security, but the internal height is restricted by the raised lid edge, and the basic design might not appeal to those seeking a more polished look. Still, its ease of assembly and dual seating/storage function make it a practical option for smaller patios or garden areas.

    Pros:
    • Waterproof and UV resistant
    • Lightweight at 8.8 pounds
    • Supports up to 220 pounds as seating
    • Easy, quick assembly
    Cons:
    • Limited internal height and capacity
    • Design may be too basic for some tastes

    Best for: Individuals seeking lightweight, easy-to-move outdoor storage with seating capacity

    Not ideal for: People with large storage needs or aesthetic preferences for polished designs

    • Capacity:30 gallons
    • Dimensions:22 x 16 x 20 inches
    • Material:High density resin
    • Weight:8.8 pounds
    • Maximum Load:220 pounds
    Our verdict
    “This fits best for users who prioritize portability and quick setup for small to medium outdoor storage needs.”
  14. Greesum Outdoor Storage Box 82 Gallon Waterproof and UV Resistant Storage Bin with Lid

    Greesum Outdoor Storage Box 82 Gallon Waterproof and UV Resistant Storage Bin with Lid

    Best for Secure, Multi-Purpose Storage with Seating

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    Compared with the 110-gallon Greesum model, this 82-gallon version offers slightly less capacity but retains similar weatherproofing qualities and added security features. Its lockable holes and hydraulic brackets enhance safety, while supporting as a seat or small table, similar to the Greesum 110-gallon model. The resin construction ensures resistance to water, UV, and corrosion, making it suitable for various climates. Assembly may involve some effort, and the lock mechanism requires separate locks, which could be an inconvenience. This option suits buyers who want a secure, weatherproof, multi-purpose outdoor storage solution that doesn’t need to be especially large.

    Pros:
    • Large 82-gallon capacity
    • Weatherproof resin resists water and UV damage
    • Supports as seating or table up to 2 adults
    • Lockable holes for security
    Cons:
    • Assembly can be somewhat time-consuming
    • Separate locks needed for security

    Best for: Gardeners or patio owners needing secure, multi-functional storage in a manageable size

    Not ideal for: Those requiring very large capacity or minimal assembly effort

    • Capacity:82 gallons
    • Material:Resin
    • Color:Black
    • Features:Waterproof, UV resistant, lockable holes, hydraulic brackets
    Our verdict
    “This is well-suited for users seeking secure, durable, multi-purpose outdoor storage without the bulk of larger models.”
  15. EasyUp 50 Gallon Waterproof Lockable Outdoor Storage Box with Handles

    EasyUp 50 Gallon Waterproof Lockable Outdoor Storage Box with Handles

    Best for Easy Assembly and Portability

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    Compared to larger models like the Greesum 82-gallon box, the EasyUp 50-gallon storage box offers a balanced mix of capacity and portability with straightforward assembly in just 16 minutes. Its lightweight design and built-in handles make it highly portable, ideal for users who frequently relocate or need flexible storage on a small patio. While the capacity is less than some larger options, it supports outdoor storage for cushions, tools, and pool accessories efficiently. The lock feature requires separate locks, which might be an extra step, and the overall aesthetic is functional rather than refined. This pick makes the most sense for those prioritizing quick setup, mobility, and basic weatherproof storage.

    Pros:
    • Spacious 50-gallon capacity
    • UV resistant and waterproof
    • Quick, tool-free assembly in 16 minutes
    • Dual-purpose as a bench or side table
    Cons:
    • Lock not included, requiring additional purchase
    • Handles may be less comfortable when fully loaded

    Best for: Homeowners needing a compact, easy-to-assemble storage solution with mobility features

    Not ideal for: Users with extensive storage needs or seeking integrated locking systems

    • Capacity:50 gallons
    • Material:Resin
    • Weight Capacity:300 lbs
    • Assembly Time:16 minutes
    • Features:Lockable lid, UV resistant, waterproof, portable handles
    Our verdict
    “Ideal for users who want a portable, fast-to-assemble outdoor storage box for moderate needs and occasional movement.”
waterproof outdoor storage boxes
What makes a great waterproof outdoor storage boxe
1
Capacity and Size
Assess how much storage space you need to determine the right size.
2
Material and Weather Resistance
Resin, polyethylene, and plastic are common for outdoor storage due to their resistance to moisture and UV rays.
3
Lockability and Security
If security is a concern, look for boxes with lockable lids.
4
Ease of Use and Maintenance
Features like ergonomic handles, lightweight construction, and simple latching mechanisms make daily use more manageable.
How to choose your waterproof outdoor storage boxe
1
How we picked
These products were evaluated based on several key criteria: waterproofing effectiveness, build quality, capacity, UV an
2
Capacity and Size
Assess how much storage space you need to determine the right size.
3
Material and Weather Resistance
Resin, polyethylene, and plastic are common for outdoor storage due to their resistance to moisture and UV rays.
4
Lockability and Security
If security is a concern, look for boxes with lockable lids.
5
Ease of Use and Maintenance
Features like ergonomic handles, lightweight construction, and simple latching mechanisms make daily use more manageable
Vetted waterproof outdoor storage boxes ·
The best waterproof outdoor storage boxes, compared
★ Winner Lifetime 60012 Extra Large Dec
Best Overall for High Capacity and Durability
15compared
320 gallonstop capacity
5colors

How We Picked

These products were evaluated based on several key criteria: waterproofing effectiveness, build quality, capacity, UV and weather resistance, lockability, ease of use, and overall value. We prioritized models with proven weatherproof features and durable construction, weighing the importance of size against portability and security needs. The ranking reflects a balance between performance, versatility, and price—ensuring each pick serves a distinct purpose for different types of buyers. Products offering comprehensive features without excessive cost earned higher positions, while tradeoffs like weight or price were carefully considered to match different user priorities.

Factors to Consider When Choosing Waterproof Outdoor Storage Boxes

Choosing the right waterproof outdoor storage box requires considering several factors beyond just weather resistance. Understanding your storage needs, the environment, and security requirements can help narrow options. Durability and materials influence lifespan, while features like locks and UV resistance add value depending on your location and usage. Budget constraints also play a role, but investing in quality often pays off in longevity. Here are the main considerations to guide your decision:

Capacity and Size

Assess how much storage space you need to determine the right size. Larger boxes are ideal for big items like patio furniture cushions or garden tools, but they tend to be heavier and less portable. Smaller options work well for quick-access or limited storage but may require multiple units. Think about where you’ll place the box and whether you need to move it often to avoid overestimating size. Combining capacity with ease of handling is key to avoiding frustration later.

Material and Weather Resistance

Resin, polyethylene, and plastic are common for outdoor storage due to their resistance to moisture and UV rays. Metal options offer strength but need rust protection, especially in humid climates. UV resistance extends the lifespan of the box by preventing brittleness and discoloration. Check product specifications for UV ratings or weatherproof ratings to ensure your investment withstands the elements over multiple seasons.

Lockability and Security

If security is a concern, look for boxes with lockable lids. Not all waterproof boxes are designed to be lockable, so verify this feature if you want to prevent theft or unauthorized access. Keep in mind that adding locks can sometimes complicate opening or increase costs. For high-value items, a lockable, heavy-duty design may be worth the extra investment.

Ease of Use and Maintenance

Features like ergonomic handles, lightweight construction, and simple latching mechanisms make daily use more manageable. Maintenance involves cleaning and occasionally checking seals or locks for wear. Resin and plastic options generally require less upkeep than metal, which may need rust treatment. Consider how often you’ll access the box and choose a design that minimizes hassle.

Price and Value

While budget options can provide decent waterproofing, higher-priced models often include additional features like reinforced lids, larger capacities, or lockable hardware. Balance your storage needs with your budget; sometimes paying more upfront results in longer-lasting, more secure solutions. Avoid overly cheap options that may fail under harsh weather conditions, but also watch for premium models that might exceed your actual requirements.

Frequently Asked Questions

Can I leave my waterproof storage box outside year-round?

Yes, most high-quality waterproof storage boxes are designed for year-round outdoor use. Look for models with UV-resistant materials and sealed lids to prevent water ingress during rain or snow. Regular inspections can help ensure seals remain intact. If you live in a particularly harsh climate, choosing a reinforced or metal model might offer extra durability, but most resin and polyethylene options hold up well over time when properly maintained.

Are lockable storage boxes truly secure from theft?

Lockable outdoor storage boxes significantly improve security by preventing unauthorized access. However, their effectiveness depends on the quality of the lock and the material of the box. Thieves can sometimes bypass inexpensive locks or force open weaker materials. For high-value items, consider heavy-duty, lockable models with reinforced lids and tamper-proof hardware, and always combine with secure placement for added protection.

What’s the best material for longevity in a sunny climate?

In sunny climates, UV-resistant resin or polyethylene tends to be the most durable choice. These materials resist sun damage, cracking, and discoloration over time. Metal options with proper coating can also last, but they require maintenance to prevent rust. Always verify UV ratings in product specs to ensure the box will withstand prolonged sun exposure without degradation.

How do I prevent mold or mildew inside my storage box?

Proper ventilation and regular cleaning are key to preventing mold or mildew. Choose a box with a seal that prevents water ingress but allows some airflow, or periodically open the lid to air out the interior. Avoid storing damp or wet items for extended periods, and consider adding silica gel packs or moisture absorbers inside the box. Maintaining a dry environment inside is essential for long-term storage health.

Is it worth paying extra for UV resistance?

Investing in UV resistance is worthwhile if your storage box will be exposed to direct sunlight for extended periods. UV-resistant materials last longer, maintaining their appearance and structural integrity over multiple seasons. Skimping on this feature may result in brittle, discolored, or cracked plastic after just a few years, leading to additional replacement costs. For long-term outdoor use, UV resistance often justifies the higher initial price.

Conclusion

For most buyers, the Devoko 100 Gallon Waterproof Resin Deck Box offers a balanced mix of capacity, durability, and security, making it the best overall choice. Those prioritizing affordability and ease of use might prefer the EasyUp 50 Gallon Waterproof Lockable Storage Box, especially for smaller or less demanding needs. For premium users seeking maximum longevity and security, a well-constructed metal or reinforced resin box is worth the extra expense. Beginners or casual users should focus on size and ease of access, while experienced garden owners might need larger, lockable, and UV-resistant options. This roundup aims to match each buyer type with a suitable waterproof outdoor storage solution, ensuring you find the right fit for your outdoor space.

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