Marine
350-Gallon Outdoor Resin Deck Box — Extra-Large Waterproof Storage
Product description
This extra-large outdoor deck box offers a roomy 350-gallon capacity and measures 67.72" L x 33.2" W x 33.66" H, providing space for patio cushions, pool accessories, gardening implements, sports gear, and seasonal décor.
Constructed from impact-resistant resin with UV protection, the unit is designed to withstand sun exposure and outdoor elements. The waterproof build helps keep contents free from moisture, mold and mildew. The lid is reinforced to accept a padlock (padlock not included), giving an added layer of security for deliveries and stored items.
The design serves multiple purposes: in addition to large-capacity storage, the box can function as extra seating and as a side table for drinks and reading material. The lid and body snap together in a tool-free assembly that typically takes 10–30 minutes, using a simple snap-fit construction with no separate hardware required.
Included with the carton are the base, side panels, and the hinged lid; fastening hardware is not necessary. Maintenance is straightforward—wipe clean with mild soap and water—and the material resists common outdoor wear. Suitable placement areas include patios, decks, porches, poolside zones and backyards. While the box is built for durability, its size means it may benefit from a supportive board underneath on softer or patterned deck surfaces.
Pros
- Huge 350-gallon capacity for bulky items
- Durable, impact-resistant and UV-treated resin
- Tool-free snap-together assembly and multiuse design
Cons
- Lid can feel a bit flexible when opened
- Large footprint may need a supporting platform
- Padlock not included and locking feature is basic
VerdictThis oversized resin deck box delivers a lot of organized outdoor space and multi-function use as seating or a table. It’s weather-resistant, simple to snap together without tools, and holds bulky items with ease. Expect a few flex points in the lid and a large footprint that may need a platform, but overall it’s a practical, durable solution for protecting cushions, toys, and gear outdoors.
Reviews
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Kim 5/5
Useful for RV exterior storage
Excellent additional storage for the outside of the RV. Holds a lot and keeps items protected.
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Stacey 5/5
Exactly what I needed
This thing is massive and exactly suited to my needs. Well built and holds a lot without feeling cheap.
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MP 5/5
Solid construction, easy setup
Well built and pretty straightforward to assemble. The lid functions smoothly and I’m satisfied with this purchase.
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Rockville Couple 4/5
Very large but a bit flexible
The size is impressive, but that also makes parts feel somewhat flimsy. Corner supports and some metal inserts help, and there’s a metal piece in the back of the lid but not the front. The grid-pattern bottom could leave marks on softer decking, so we plan to put a board underneath.
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Kate Emery 5/5
Does the job — keeps cushions dry
Good container and easy to assemble. Big enough to hold all my cushions and protects them during heavy rainstorms.
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Karen M. Faiola 5/5
Roomy enough for cushions and more
We used it to store eight 4" thick patio cushions and it fits with extra room for toys. Assembly was straightforward and took about 30 minutes. The box feels sturdy on our deck and has kept cushions dry through several rains. Would recommend if you need large outdoor storage that goes together quickly.
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Lucy 4/5
Keeps things dry
Assembly was fairly simple following the instructions. It’s proven waterproof and the lid opens and closes easily. The lid does feel a little flimsy unless you press near the center, and the lock hole is more for deterrence than high security, but that wasn’t an issue for us.
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Yumi 5/5
Good for pool gear and seating
Looks sturdy enough for pool chemicals, cleaning tools and gardening items, and it’s big enough to double as extra seating. I had some trouble snapping pieces at first, but a rubber mallet made everything click. The top can be uneven until pushed into place, but once set it keeps my pool supplies together nicely.
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