10 Best Outdoor Storage Boxes for Pool Supplies in 2026

If you need a tidy, weather-resistant way to store chemicals, toys, skimmers, and towels, the right storage box can make poolside cleanup much easier.

Below, we focus on practical options for different spaces, from compact decks to larger patios, so you can choose a box that fits your routine and your gear.

Best 10 Outdoor Storage Box for Pool Supplies Picks for 2026

Modern 100-Gallon Deck Box – Devoko 100 Gallon Waterproof Resin Deck Box

If you want an outdoor storage box for pool supplies that also looks good on a deck or patio, this Devoko 100-gallon resin box is built for everyday organizing. It combines waterproof storage with a lockable lid, gas-assisted opening, and bench seating, so it can handle towels, tools, and pool-side essentials while doubling as functional furniture.

Best For: Pool owners who want a stylish, lockable storage box with bench seating and plenty of room.

Pros:

• 100-gallon capacity gives you room for pool supplies, cushions, and garden tools.
• Waterproof poly resin construction is designed to resist fading, rusting, peeling, and bending.
• Lockable lid and gas rods make access safer and easier.
• Can be used as bench seating with up to 500 lbs. of support.

Cons:

• Assembly and placement may take some effort because it weighs 55 pounds.
• Best suited to users who want a larger footprint box at 48 inches long.

This is a strong pick if you want storage that feels more polished than a basic utility bin. Its mix of weather resistance, security, and seating makes it especially practical for poolside use.

Extra-Large Weather-Tight Box – LIFETIME 130 Gallon Deck Box

For a larger outdoor storage box for pool supplies, this LIFETIME deck box stands out with a 130-gallon interior and a weather-tough HDPE build. It is designed for bigger pool accessories, outdoor gear, and other bulky items, while the lockable, spring-assisted lid adds convenience and security.

Best For: Buyers who need maximum storage capacity for bulkier poolside and patio items.

Pros:

• Large 130-gallon capacity offers the most space in this group.
• HDPE construction is moisture-resistant and stress-crack resistant.
• Lockable lid with controlled spring hinge closes gently.
• Very high weight recommendation of 900 lbs. adds versatility.

Cons:

• Assembly is required.
• Its larger size may be more box than smaller patios need.

If storage volume is the priority, this is the most spacious option here. It makes sense for families or pool setups with lots of accessories that need to stay organized and protected.

Budget-Friendly Poolside Bin – Greesum 82 Gallon Outdoor Storage Box

This Greesum model is a practical outdoor storage box for pool supplies when you want straightforward organization without a huge footprint. The 82-gallon resin design is waterproof, UV resistant, and lockable, making it a useful place for pool items, yard tools, and patio accessories.

Best For: Shoppers who want a lighter, easier-to-handle storage box for pool and patio items.

Pros:

• 82-gallon capacity works well for general outdoor organization.
• Waterproof resin construction adds water, corrosion, and UV resistance.
• Lockable holes and hydraulic brackets improve security and safer opening.
• Can also be used as a seat or table.

Cons:

• Weight recommendation is lower than larger premium boxes at 330 lbs.
• Less storage volume than the biggest deck boxes in this roundup.

It is a sensible middle-ground option if you want solid weather protection and simple utility. The lighter weight also makes it easier to manage than many larger deck boxes.

Compact Patio Organizer – Keter Kentwood 92 Gal Outdoor Storage Box

The Keter Kentwood is a practical outdoor storage box for pool supplies when you want a compact, weatherproof organizer that still offers decent capacity. With 92 gallons of resin storage, lockable security, and easy assembly, it fits well in garage or covered patio spaces for towels, pool accessories, and outdoor toys.

Best For: Covered patios or garages that need tidy storage for pool accessories and towels.

Pros:

• 92-gallon capacity is a useful middle size for pool and patio items.
• Resin construction resists rusting, peeling, fading, and denting.
• Lockable lid and 573-lb. seating capacity add versatility.
• Ready to assemble in under 20 minutes with no tools required.

Cons:

• Recommended use is garage or covered patio storage, not fully exposed placement.
• Smaller than the largest deck boxes if you need maximum volume.

This box is a good fit if you want something simple, durable, and fast to set up. Its easier assembly and balanced size make it appealing for everyday poolside organization in protected spaces.

Large Family Deck Box – PatioZen 150 Gallon Resin Deck Box

If you need an outdoor storage box for pool supplies with plenty of room to spare, this 150-gallon PatioZen deck box is built for bulky gear like floats, cushions, and seasonal accessories. It also adds extra usefulness with a lid that can serve as a seat or side table.

Best For: Larger patios, pool areas, and homeowners who want high-capacity storage with bench-style versatility.

Pros:

• Large 150-gallon capacity fits pool floats, cushions, and garden tools.
• Waterproof, UV-resistant, fade-resistant, and warp-resistant resin construction.
• Built-in handles and tool-free assembly make setup and moving easier.
• Reinforced lid supports added weight and can double as a seat or table.

Cons:

• May be larger than needed for small balconies or compact patios.
• Padlock is not included if you want to use the lockable feature.

For buyers who want maximum storage capacity and weather protection, this is a strong all-around pick. It focuses on practical outdoor organization while still offering multi-use value.

Compact Space Saver – Keter Marvel 71 Gal Outdoor Storage Box

If you want an outdoor storage box for pool supplies but don’t have much space, the Keter Marvel is designed for compact patios, balconies, and porches. Its 71-gallon interior is a practical fit for pool accessories, cushions, and other light outdoor essentials.

Best For: Small outdoor spaces where storage needs to stay compact and easy to use.

Pros:

• Compact footprint works well on balconies, porches, and small patios.
• 71-gallon capacity still fits pool accessories and patio cushions.
• Weather-resistant resin with a wood-look finish helps resist fading, rot, and warping.
• Can serve as a bench with a 485 lb weight capacity and assembles without tools.

Cons:

• Smaller capacity than larger deck boxes for bulky pool gear.
• Best for lighter organization rather than heavy-duty storage loads.

This is a smart choice when space is tight but you still want a neat, weather-ready storage solution. It balances size, ease of assembly, and extra seating in a very usable way.

Poolside Organizer – Greesum 110 Gallon Outdoor Storage Box

The Greesum deck box is a strong middle-ground outdoor storage box for pool supplies, giving you 110 gallons of space for noodles, cushions, and seasonal gear. It’s designed for year-round outdoor use with waterproof, UV-resistant, fade-resistant construction and a secure lockable lid.

Best For: Poolside storage where you want a balance of size, weather protection, and easy assembly.

Pros:

• 110-gallon capacity handles pool noodles, cushions, toys, and tools.
• Waterproof, UV-resistant, and fade-resistant PP material.
• Lockable lid plus slow-close hydraulic rods add convenience and safety.
• Integrated side handles and tool-free assembly simplify setup and moving.

Cons:

• Not as large as 150-gallon options for oversized storage needs.
• Assembly still requires following included instructions and toolkit steps.

For most pool decks, this size is easy to live with while still offering solid capacity. It stands out for combining practical storage, weather resistance, and safer lid operation.

Compact Poolside Organizer – YITAHOME 31 Gallon Outdoor Storage Box

If you want an outdoor storage box for pool supplies that keeps small essentials close at hand, this YITAHOME 31-gallon resin box is built for practical, everyday use. Its waterproof, UV-resistant polypropylene construction and wood-like texture make it a neat fit for patios, poolside corners, and beach towel storage without looking overly utilitarian.

Best For: Pool owners who need a compact, lockable storage box for smaller accessories, towels, and garden items.

Pros:

• 31-gallon capacity is well suited to smaller pool accessories and towels.
• Weatherproof polypropylene resin is waterproof, UV-resistant, and warp-resistant.
• No-tool assembly makes setup straightforward for one person.
• Built-in handles make it easier to move around the patio or deck.

Cons:

• Smaller interior capacity may not suit bulkier pool gear.
• Lock is not included, even though the lid is lockable.

Overall, this box is a solid choice if you value simple assembly, weather resistance, and a compact footprint over maximum storage volume. It works best as a tidy, grab-and-go organizer for poolside essentials.

Lightweight Pool Accessory Box – Devoko 30 Gallon Resin Deck Box

For shoppers comparing an outdoor storage box for pool supplies, this Devoko 30-gallon resin deck box focuses on convenience and portability. It is lightweight, waterproof, UV-resistant, and designed to assemble quickly, making it a practical pick for keeping pool accessories, cushions, or other small outdoor items nearby.

Best For: Anyone who wants a lightweight, easy-to-assemble storage box for pool accessories and patio basics.

Pros:

• Only 8.8 pounds, so it is easy to move when needed.
• Waterproof and UV-resistant resin helps it hold up outdoors.
• Can be locked to help keep contents secure.
• Simple five-minute assembly with six side panels.

Cons:

• 30-gallon capacity is best for smaller storage loads.
• Designed more for portability than heavy-duty storage volume.

This is a good fit if you want a no-fuss deck box that can be set up fast and moved around easily. It offers a balanced mix of weather protection, security, and everyday poolside storage.

Large Bench Storage Option – Devoko 80 Gallon Storage Bench Deck Box

If your outdoor storage box for pool supplies needs to do more than hold a few accessories, this Devoko 80-gallon storage bench adds serious capacity and usable seating. Its resin body, steel reinforcement, and lockable design make it a strong option for organizing larger pool items while also working as a bench on the patio.

Best For: Families or hosts who want a large lockable storage bench for pool accessories, cushions, and towels.

Pros:

• 80-gallon capacity provides room for larger poolside storage needs.
• Supports up to 400 lbs and seats two or three people.
• Three steel bars add strength to the case.
• Locking holes help secure the contents.

Cons:

• Much larger footprint than a standard deck box.
• Heavier build may be less convenient if you want frequent repositioning.

This model makes sense when storage and seating are equally important. It is especially useful for keeping pool supplies organized while giving your outdoor space an extra bench feature.

How We Picked the Best Outdoor Storage Box for Pool Supplies

We focused on boxes that make sense for poolside use: durable resin or weather-resistant construction, lid designs that help keep contents dry, and sizes that work for common storage needs like floats, test kits, brushes, and cleaning tools. Lockable lids, easy-access openings, and UV resistance also matter because an Outdoor Storage Box for Pool Supplies needs to stand up to sun, splashes, and frequent use.

Quick Comparison: What the Main Size Ranges Mean

Smaller boxes around 30 to 40 gallons are best for essentials and tight spaces. Mid-size options in the 70 to 100 gallon range offer a strong balance of footprint and capacity for most families. Large boxes above 110 gallons are better if you store bulky toys, multiple pool accessories, or want extra room for seasonal overflow. If you also want seating or a bench-like profile, look closely at the design rather than just the capacity number.

Key Buying Factors for an Outdoor Storage Box for Pool Supplies

Capacity and Footprint

Think about what you actually store, not just how much space you have. Oversized boxes are convenient, but they can dominate a small patio. Measure the spot where the box will sit, then compare it with the internal storage you need.

Weather Resistance

Pool areas mean moisture, chlorine exposure, and strong sun. Look for waterproof or weatherproof claims backed by sealed lids, UV-resistant resin, and materials that are easy to rinse off.

Security and Accessibility

A lockable lid is useful if you store pool chemicals, small tools, or items you want to keep away from kids and pets. At the same time, the lid should open smoothly and stay easy to use during frequent pool days.

Durability and Maintenance

Resin is popular because it is low maintenance and won’t rust like metal. Check whether the box is designed to handle weight on the lid if you plan to use it as extra seating or a side table.

Who Should Buy Which Outdoor Storage Box for Pool Supplies?

If you have a small patio or only need a place for essentials, choose a compact box in the 30 to 40 gallon range. If you want the best all-around solution for most households, a mid-size model around 80 to 100 gallons is usually the sweet spot. If you store lots of gear, bigger pool floats, or prefer fewer trips back and forth, go for 110 gallons or more.

For buyers comparing an Outdoor Storage Box for Pool Supplies, the best choice is the one that matches your space, your storage load, and how often you use it. Capacity matters, but convenience and weather protection matter just as much.