320 Gallon Waterproof Outdoor Storage Box, UV Resistant Resin Deck Box with Hydraulic Rod for Reinforced Stability, Perfect for…
Best for
Best waterproof
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$236.99
Updated Jun 23, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, this 320-gallon box is the standout for buyers prioritizing weather sealing and sheer volume, and it carries the strongest source mix in this pool. It appears in The Spruce's tested deck-box roundup (a publisher with disclosed testing methodology), and a high-trust Best Buy listing describes durable, waterproof, UV-resistant wood-grain resin with tool-free assembly and easy-lift handles. The high-trust r/pools thread's general praise for thick, durable resin construction lends corroboration.
What reviewers liked
- Listed in The Spruce's tested deck-box roundup (disclosed methodology)
- High-trust Best Buy listing cites waterproof, UV-resistant resin and tool-free assembly
- Massive 320-gallon capacity with hydraulic lid rod
- r/pools community praise for durable resin corroborates build claims
Where it falls short
- Thin first-hand review base (431 ratings) versus mainstream picks
- Premium price around $237
- Large resin boxes draw community concerns about reinforcement
- r/CostcoCanada note about lid water pooling applies to big flat lids
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Across the reviewers we read, this 320-gallon box is the standout for buyers prioritizing weather sealing and sheer volume, and it carries the strongest source mix in this pool. It appears in The Spruce's tested deck-box roundup (a publisher with disclosed testing methodology), and a high-trust Best Buy listing describes durable, waterproof, UV-resistant wood-grain resin with tool-free assembly and easy-lift handles. The high-trust r/pools thread's general praise for thick, durable resin construction lends corroboration.
The limitations are real: the first-hand review base is comparatively thin (431 Amazon ratings at 4.3), and at roughly $237 it's a premium buy. Broader community skepticism about large resin boxes also applies, r/GardeningUK reviewers note that big boxes can feel under-reinforced for the money, and r/CostcoCanada's note about water pooling on large lids is worth keeping in mind even on UV- and water-resistant designs.
For someone who needs maximum capacity with an emphasis on staying dry and is comfortable buying on a thinner but higher-trust evidence base, the weighted picture supports it, just temper expectations against the limited volume of independent long-term reports.
- 320 Gallon Large Storage Capacity
- Measuring (67.88''L x 32.28''W x 33.74''H), this outdoor storage box provides an 320-gallon capacity, offering ample space for patio cushions, gardening tools, pool accessories, and more. Keep your outdoor essentials organized and protected with ease.
- Waterproof And Uv Resistant
- Built from premium waterproof and UV-resistant resin, this storage box is designed to endure various weather conditions. Its robust construction ensures your belongings remain dry and protected all year round.
- Extra Seat Or Table
- Doubling as a seat or table, this deck box supports up to 230 lbs. Use it as a patio chair, a handy coffee table, or even a sturdy footrest, making it functional for both indoor and outdoor use.
- Secure & User-Friendly Design
- Equipped with a hydraulic rod, the lid opens and closes smoothly, reducing the risk of accidental pinching. A built-in locking mechanism provides added security, making it perfect for safeguarding outdoor valuables.
- Quick Assembly & Easy Handling
- Assembly is tool-free and takes just 20 minutes. Simply snap the panels together for a hassle-free setup. Ergonomic side handles make it easy to transport, so you can move it wherever it’s needed effortlessly.
We bought this one and have been very happy with it. It was easy to assemble, it's very sturdy and you can add a lock. We leave it out doors ...
80 gallon weather resistant deck box for $50. We're in need of one for our patio but wanted to see if anyone has insights on the quality.
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“KFY 320 Gallon Waterproof Outdoor Storage Box” · UV ...
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