100 Gallon Outdoor Storage Box - Large Water Resistant Deck Chest

Our review of the 100 Gallon Outdoor Storage Box finds it best for homeowners who need a roomy, weatherproof place to store cushions, pool gear, and garden tools while doubling as extra seating. The single biggest reason to buy is its combination of generous internal capacity and durable resin construction that keeps contents dry and resists fading. Assembly varies by buyer, but once set up the box delivers practical storage and a stable bench for casual outdoor use.

Key Features

• Spacious storage: The box offers a full 100-gallon capacity with internal dimensions of 44.9in L x 21.9in W x 21.6in H to fit multiple cushions, towels, or pool accessories.
• Weather resistant construction: Made from resin that is waterproof, rust-proof, UV-resistant and fade-proof to protect stored items through different seasons.
• Lockable design: The deck box includes a lid designed for a lock so you can secure tools and accessories when needed.
• Smooth opening: Hydraulic struts provide slow and safe opening and closing of the lid to avoid slams and make access easier.
• Portable handling: Dual side handles let one or two people move the box with less effort when repositioning on a patio or deck.
• Extra seating: The top doubles as a bench that supports up to 485 lb, giving occasional seating without separate furniture.

Who It's For

This storage box suits homeowners with medium to large patios, pool owners, or anyone needing a weatherproof container for cushions and outdoor gear. Its 100-gallon volume is particularly useful for families who rotate cushions seasonally or store bulky items like pool noodles and folded patio furniture seat pads.

It is less well suited for very small balconies or narrow storage areas where the external footprint of 45.3in L x 21.7in W x 23in H would be obtrusive. Also, buyers expecting tool chest style internal organization should plan to add bins or dividers, since the interior arrives as one open compartment.

Pros & Cons

Pros

• Roomy 100-gallon interior fits multiple cushions and towels with space to spare.
• Durable resin construction keeps contents dry and resists rust, UV and fading.
• Hydraulic struts and dual handles make daily use and movement easier.
• Top functions as an extra bench that supports heavy loads up to 485 lb.

Cons

• Assembly can be fiddly for one person and some buyers report difficulty without a partner.
• A few users noted concerns about cracking under extreme stress; treat it as outdoor storage rather than heavy-duty construction storage.

Specifications

Our Verdict

The 100 Gallon Outdoor Storage Box is a practical, value-oriented choice for anyone who needs large, weatherproof storage that also doubles as occasional seating. While assembly can require two people and some buyers mention potential cracking if abused, the box delivers on roomy capacity, watertight performance, and a durable look that blends with most patios and decks.

Frequently Asked Questions

Is this box waterproof?
Yes, the resin construction is designed to be waterproof and keep contents dry in rain.

Can two people move it easily?
Yes, dual side handles help move the box, but its size means two people are recommended for repositioning.

Does it come with a lock?
The lid is designed to accept a lock for security, but a padlock is not included.