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Best Outdoor Storage BoxesMid-range (2026)

17 outdoor storage boxes matching price tierMid-range, hand-picked from UK Amazon listings.

Not sure which one to pick? Read our Best Outdoor Storage Box UK guide.

Suncast DBW9200 Premium Garden Resin Wicker Storage Deck Box, 375L, Java

#1 Pick

Suncast DBW9200 Premium Garden Resin Wicker Storage Deck Box, 375L, Java
Rated 4.4 out of 5 stars (892)
  • Resin
  • Garden Furniture Cushions

Currently unavailable

Pros

  • Textured resin wicker finish for a smarter look on decking
  • Hinged lid stays open while loading and unloading
  • 375L capacity for cushions and garden accessories

Cons

  • Base can flex slightly on uneven paving
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Suncast 189 Litre Medium Deck Box, Peppercorn

#2 Pick

Suncast 189 Litre Medium Deck Box, Peppercorn
Rated 4.4 out of 5 stars (260)
  • Resin
  • Cushion & Garden Tool Storage

Currently unavailable

Pros

  • Arched lid sheds rainwater away from the seal
  • Compact 189L size suits smaller patios and balconies
  • Weatherproof resin needs no painting or treatment

Cons

  • Smaller capacity than the larger Suncast deck box models
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Pros

  • Built-in wheels make it easy to reposition when full
  • Lid doubles as extra garden seating
  • All-weather resistant plastic needs no annual treatment

Cons

  • Handles feel basic compared to premium resin brands
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CHRISTOW Waterproof Garden Storage Box, 190L, Wood Grain Effect, Lockable Lid

#4 Pick

CHRISTOW Waterproof Garden Storage Box, 190L, Wood Grain Effect, Lockable Lid
Rated 4.4 out of 5 stars (310)
  • Plastic
  • Cushion & Tool Storage

£49.99

Pros

  • Wood grain effect finish looks smarter than plain resin
  • Aluminium sliding hinges support the lid when open
  • Lockable hasp keeps garden tools and cushions secure

Cons

  • 190L capacity suits smaller patios rather than full bin storage
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Currently unavailable

Pros

  • Steel-reinforced construction is sturdier than plain resin boxes
  • No-tool assembly saves setup time
  • 270L capacity suits garden tools and equipment

Cons

  • Heavier than pure plastic deck boxes of a similar size
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YITAHOME 450L Garden Storage Box, Waterproof Outdoor Storage Box, Lockable Deck Box, White

#6 Pick

YITAHOME 450L Garden Storage Box, Waterproof Outdoor Storage Box, Lockable Deck Box, White
Rated 4.4 out of 5 stars (260)
  • Resin
  • Cushion & Pool Supplies Storage

Currently unavailable

Pros

  • 450L capacity fits patio cushions, garden tools and pool supplies
  • UV and weather-resistant resin resists fading and rust
  • Lockable lid keeps contents secure outdoors

Cons

  • Large footprint needs a flat, dedicated spot
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CASARIA Waterproof Garden Outdoor Storage Box 280L, Plastic Storage Box with Lid, Grey

#7 Pick

CASARIA Waterproof Garden Outdoor Storage Box 280L, Plastic Storage Box with Lid, Grey
Rated 4.3 out of 5 stars (640)
  • Plastic
  • Parcel & Tool Storage

£52.99

Pros

  • UV-resistant polypropylene resists fading in direct sun
  • Lockable lid keeps parcels, tools or cushions secure outdoors
  • 280L capacity suits patios, balconies and small gardens

Cons

  • Grey finish shows dust more than darker resin boxes
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Keter City 113L Outdoor Small Balcony Garden Furniture Storage Box, Grey Wood Panel Effect

#8 Pick

Keter City 113L Outdoor Small Balcony Garden Furniture Storage Box, Grey Wood Panel Effect
Rated 4.4 out of 5 stars (3,200)
  • Resin
  • Balcony & Small Patio Storage

£28.00

Pros

  • Compact 113L size fits small balconies and patios
  • 96% recycled resin is fade-free and weatherproof
  • Wood panel effect looks smarter than plain plastic

Cons

  • Small capacity suits cushions rather than large tools
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Keter Cortina Outdoor Storage Box 570 L, Grey

#9 Pick

Keter Cortina Outdoor Storage Box 570 L, Grey
Rated 4.6 out of 5 stars (1,120)
  • Resin
  • Garden Cushion & Tool Storage

Currently unavailable

Pros

  • Large 570L capacity fits cushions, tools and garden toys
  • Weatherproof resin construction resists fading and cracking
  • Lockable lid keeps contents secure from weather and pets

Cons

  • Bulky size needs a flat, level patio or decking area
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Keter Darwin Storage Box - 570L - 142.5 x 65.5 x 78cm, Grey

#10 Pick

Keter Darwin Storage Box - 570L - 142.5 x 65.5 x 78cm, Grey
Rated 4.6 out of 5 stars (940)
  • Resin
  • Garden Cushion & Tool Storage

Currently unavailable

Pros

  • Rustic woody texture blends in with garden furniture
  • EVOTECH material is weatherproof and UV protected
  • Sturdy lid can double as extra patio seating

Cons

  • Requires two people to move once loaded
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Keter Marvel+ 270L Outdoor Garden Furniture Storage Box, Graphite Wood Panel Effect

#11 Pick

Keter Marvel+ 270L Outdoor Garden Furniture Storage Box, Graphite Wood Panel Effect
Rated 4.6 out of 5 stars (3,200)
  • Resin
  • Garden Furniture & Cushion Storage

£53.90

Pros

  • Wood-panel effect resin looks smart without any maintenance
  • Lid doubles as extra outdoor seating up to 220kg
  • Made from 65% recycled material with a 2-year warranty

Cons

  • Lock is sold separately for extra security
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AIRWAVE Outdoor Plastic Garden Storage Box 270L, Lockable, Doubles as Storage Bench, Wood Effect

#12 Pick

AIRWAVE Outdoor Plastic Garden Storage Box 270L, Lockable, Doubles as Storage Bench, Wood Effect
Rated 4.4 out of 5 stars (624)
  • Plastic
  • Garden Tools & Cushions

£62.00

Pros

  • Lid holds up to 200kg, so it doubles as extra garden seating
  • Lockable hasp keeps tools and cushions secure
  • Weather and fade-resistant polypropylene shell

Cons

  • Padlock not included, so buy one separately for full security
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Pros

  • Wood-effect resin panels weather without rotting or splintering
  • Lockable lid with built-in wind lock keeps the lid shut in gusts
  • Doubles as extra outdoor seating for guests

Cons

  • No-tools assembly still takes a few minutes to click together
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groundlevel.co.uk Amazing Weatherproof Outdoor Garden Storage Box, Grey Extra Large

#14 Pick

groundlevel.co.uk Amazing Weatherproof Outdoor Garden Storage Box, Grey Extra Large
Rated 4.3 out of 5 stars (287)
  • Plastic
  • Extra Large

Currently unavailable

Pros

  • Extra large size swallows cushions, tools and toys with ease
  • Weatherproof shell copes well with UK rain and frost
  • Neutral grey finish blends into most patios and decking

Cons

  • Lid is not lockable, so avoid storing valuables outdoors
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Pros

  • Built-in wheels make it easy to reposition when full
  • Lockable lid doubles as a seat
  • Waterproof resin shell suits year-round outdoor use

Cons

  • Wheels are small and struggle on gravel or grass
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Keter Signature 190L Kentwood Outdoor Garden Storage Box, Rosewood

#16 Pick

Keter Signature 190L Kentwood Outdoor Garden Storage Box, Rosewood
Rated 4.6 out of 5 stars (252)
  • Resin
  • Garden Tool Storage

£47.62

Pros

  • Weather-resistant resin needs no maintenance
  • Lockable lid keeps garden tools and cushions secure
  • Compact footprint suits smaller patios and balconies

Cons

  • 190L capacity is modest for large garden equipment
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Olsen & Smith 270L Outdoor Parcel Box & Garden Storage Box with Lid

#17 Pick

Olsen & Smith 270L Outdoor Parcel Box & Garden Storage Box with Lid
Rated 4.6 out of 5 stars (414)
  • 270l-black

£54.99

Pros

  • RECYCLED DURABLE MATERIALS & WEATHER RESISTANT: This large storage cabinet box is made from 100% Recycled high-quality polypropylene plastic to ensure strength and durability. It's designed to be weather resistant, protecting your items from rain, snow, and harsh sunlight; making it the ideal outdoor cushion storage solution.
  • STYLISH AND FUNCTIONAL: This outside of the storage box features an elegant wood effect that enhances the look of your garden. It features two gas-assisted lifting hinges to make opening and closing easier. Additionally, it can be used as an outdoor storage bench for seating two people on the top (max weight 100kg per side).
  • SAFE & SECURE: The storage box is lockable and comes with a quality 3-digit combination padlock for added security for your stored items. This protects your belongings from unwanted access from pets, children or thieves.
  • EASY TO MOVE AND ASSEMBLE: This garden tool organiser is lightweight enough for two people to lift comfortably, allowing you to move it around your garden, decking or patio. It arrives flat-packed with simple instructions for quick and easy assembly. Only a screwdriver is needed, and with the simple clip-together panels you will have your storage chest ready in no time!

Cons

  • Full specification not confirmed on the listing — check before buying
View on Amazon →

At a glance

Products
17
Price range
£28.00–£159.99
Average price
£65.36
Average rating
4.45 / 5
Total reviews
14,490
Top brand
Keter (6)
In stock
9

These mid-range outdoor storage boxes are designed to provide robust protection for your garden tools, furniture cushions, or seasonal decorations. Constructed from durable polyethylene, they’re built to withstand the elements and offer a substantial level of security against rain, sun, and general wear and tear. Ideal for patios, sheds, or garages, these boxes offer a practical and stylish solution for keeping your outdoor items organised and protected throughout the year. The robust construction ensures longevity, making them a worthwhile investment for any homeowner looking to maintain their garden space effectively.

FAQ

What are these storage boxes made of?

These outdoor storage boxes are primarily constructed from high-density polyethylene (HDPE), which is known for its weather resistance and durability. This material can withstand prolonged exposure to sunlight, rain, and temperature fluctuations without degrading.

Are these boxes stackable?

While not specifically designed for heavy stacking, many users find they can be stacked with caution, particularly with lighter items. We recommend distributing the weight evenly when stacking to avoid potential instability.

Do these boxes require assembly?

These storage boxes arrive flat-packed and are designed for simple self-assembly. All necessary hardware is included in the packaging, typically with a set of screws and possibly foam inserts for protection.

What’s the typical lifespan of these boxes?

With proper care and maintenance, these mid-range storage boxes can last for 5-7 years or longer. Regular cleaning to remove dirt and debris will help preserve their appearance and structural integrity.

Are they suitable for storing wet items?

While the polyethylene is water resistant, it’s not fully waterproof. We recommend using a liner inside the boxes for storing particularly wet or damp items to prevent moisture build-up and potential mildew growth.

What size are these storage boxes?

These mid-range outdoor storage boxes typically come in standard sizes like 60cm x 45cm x 38cm, offering a good balance between capacity and space efficiency for most garden needs.

Can these be used as planters?

These boxes are primarily designed for storage but can certainly be repurposed as small planters. However, it’s essential to ensure adequate drainage by adding a layer of gravel or broken pottery at the bottom before planting.

How do I clean these boxes?

Cleaning is easy! Simply wipe down the exterior with a damp cloth and mild soap. Avoid using abrasive cleaners or harsh chemicals that could damage the surface of the polyethylene.

What’s the weight capacity of each box?

Each mid-range outdoor storage box is designed to comfortably hold around 20-30kg of items. However, it's always best to distribute the weight evenly within the box to ensure stability.

Are these boxes UV resistant?

The polyethylene material used in these storage boxes offers a degree of UV resistance, helping to prevent fading and degradation from prolonged sun exposure. However, placing them under direct shade will further extend their lifespan.