320 Gallon Deck Box Waterproof Storage Chest - Large Outdoor Bench

In this review of the 320 Gallon Deck Box, the bottom line is simple: this is a practical solution for homeowners who need a large, weatherproof place to store bulky outdoor items. The box is aimed at people with patio furniture cushions, pool toys, gardening tools, or seasonal gear who want a single, lockable unit that also doubles as occasional seating. Built from upgraded weather-resistant resin with UV protection and a lockable lid, the key reason to buy is the sheer 320 gallon storage capacity combined with a sturdy, outdoor-rated design.

Key Features

• Large storage space: The box holds up to 320 gallons and measures L:67.72 in, W:32.2 in, H:33.66 in, so it fits multiple cushions, pool toys, or garden tools with room to spare.
• Weather-resistant resin: Constructed from upgraded waterproof resin that resists denting, rust, peeling and stands up to outdoor exposure.
• UV resistance: The material is UV-resistant so contents and exterior finish are better protected from sun damage over time.
• Lockable lid: A lid that accepts a padlock provides extra protection against moisture and curious critters, keeping stored items secure.
• 2-in-1 seating and storage: The top is weight-bearing so the deck box doubles as extra patio seating when needed.
• Quick assembly: Clear instructions make for a relatively fast setup, typically around 20 minutes for one or two people.

Who It's For

This deck box is best for homeowners, renters with outdoor patios, and pool owners who need a large-capacity, weatherproof storage solution that can also serve as occasional seating. It works well for people storing bulky items such as patio cushions, pool equipment, garden tools, or fitness gear.

It is less suited for those who need a small, decorative storage trunk for tight spaces or an indoor-only cabinet with a wood or premium finish. If you need a compact locker-style unit for tools or a permanent heavy-duty workshop chest, consider a purpose-built tool cabinet instead.

Pros & Cons

Pros

• Very large capacity fits multiple cushions, pool toys and tools at once.
• Durable, waterproof resin construction protects contents from moisture and outdoor exposure.
• Lockable lid adds security and the top can be used as extra seating when needed.
• Quick, straightforward assembly with clear instructions; customers note ease of setup.

Cons

• Large footprint requires adequate patio or storage area and may not fit tight spaces.
• Plastic resin finish may not match higher-end patio furniture aesthetics for some buyers.

Specifications

Capacity	320 gallons
Dimensions (L x W x H)	67.72 in x 32.2 in x 33.66 in
Material	Weather-resistant waterproof resin
Outdoor rating	UV-resistant, suitable for indoor or outdoor use
Lock	Lockable lid compatible with padlock
Function	2-in-1 storage box and seating bench
Assembly time	Approximately 20 minutes with instructions

Our Verdict

The 320 Gallon Deck Box is a practical, good-value choice for anyone who needs a large, weatherproof storage solution for patio cushions, pool gear, or garden tools. Its durable resin construction, lockable lid and seating capability make it a versatile backyard organizer, though its large footprint and plastic finish are trade-offs to consider.

Frequently Asked Questions

Is this box waterproof?
Yes. It is made from waterproof resin designed to keep moisture out and protect stored items.

Can it be used as seating?
Yes. The box has a weight-bearing design intended to double as occasional patio seating.

How long does assembly take?
Assembly is straightforward with included instructions and typically takes around 20 minutes.