πΏ Product Review
Best Garden Storage Boxes UK 2026
A garden storage box keeps cushions dry, tools tidy and patio clutter hidden. We compared six top-rated deck boxes on Amazon UK for capacity, weather resistance, build quality and value. Whether you need something compact for a balcony or a large deck box that doubles as seating, these are the options worth considering.
Key Takeaways
- Keter Westwood 570L is the best all-rounder, with a generous 570L capacity, weather-resistant resin, and a lockable lid that keeps contents dry through UK winters.
- Keter Eden Bench 265L pulls double duty as outdoor seating with a 150kg weight capacity, ideal for small patios where space is at a premium.
- DWVO 340L offers the best budget pick with a wood-texture finish, double-wall construction, and a 450lb capacity at a competitive price.
- Resin deck boxes outperform wooden alternatives for UK weather, no painting or treatment needed, and they won't rot or rust.
- For cushion storage, aim for at least 270L capacity. For tool storage or larger items, 480L+ gives you room to breathe.
Also worth reading: best garden planters and garden tool storage ideas.
Quick Picks
Best Overall
Keter Westwood 570LBest Bench/Seating
Keter Eden Bench 265LBest Budget
DWVO 340L ResinBest Large Capacity
Grand Patio 480LQuick Comparison
| Product | Price | Capacity | Material | Best For |
|---|---|---|---|---|
| Keter Westwood 570L | ~Β£100 | 570L | Resin (recycled) | Large patios, cushion storage |
| Keter Marvel+ 270L | ~Β£65 | 270L | Resin (recycled) | Small gardens, budget pick |
| Keter Eden Bench 265L | ~Β£90 | 265L | Resin (recycled) | Dual seating + storage |
| DWVO 340L Resin | ~Β£70 | 340L | Resin (double-wall) | Budget, wood-look finish |
| Grand Patio 480L | ~Β£80 | 480L | Resin | Large capacity, easy mobility |
| COSTWAY 380L | ~Β£75 | 380L | Resin (grooved texture) | Mid-range, lockable lid |
In-Depth Reviews
Keter Westwood 570L Outdoor Storage Box
Price ~Β£152.68 | 570L capacity | 149 x 68 x 74 cm | 75% recycled resin | Lockable lid
The Keter Westwood is the biggest storage box in this roundup and the one most UK gardeners reach for when they need serious capacity. At 570L, it comfortably fits a full set of outdoor cushions plus a few garden accessories. The wood-panel effect looks far more convincing than you'd expect from a resin box, and the recycled material gives it a solid, sturdy feel without the weight of real timber.
The lid opens wide on a gas piston mechanism, which means it stays up on its own while you dig around inside. An Amazon reviewer noted: "It's held up through two British winters without any warping or water ingress." The lockable hasp is a genuine security feature, not just decorative. One drawback: at nearly 1.5m wide, it needs a decent amount of patio space.
Pros
- 570L capacity fits full cushion sets
- Gas-piston lid stays open
- Lockable for security
- UV-resistant, won't fade
Cons
- Takes up significant patio space
- Lid can catch in strong wind
- Assembly takes 30-40 minutes
Keter Eden Bench 265L Outdoor Storage
Price ~Β£164.97 | 265L capacity | 143 x 60 x 82 cm | 60% recycled resin | 150kg seat capacity
The Eden Bench solves two problems at once: you get a garden seat and a storage box in one footprint. The 265L internal space is enough for a set of standard garden cushions or a collection of hand tools. The seat itself is rated to 150kg, which comfortably supports two adults side by side.
An Amazon reviewer noted: "We use it on our small balcony and it's been brilliant. The cushion store keeps everything dry and we sit on it every evening." The wood-panel effect finish blends well with most garden furniture. The lid doesn't have a gas strut like the Westwood, so you hold it open manually, but at this size that's not a hardship.
Pros
- Dual function: seat + storage
- 150kg weight capacity
- Compact footprint
- Zero maintenance resin
Cons
- 265L too small for large cushion sets
- No gas strut on lid
- Not lockable
DWVO 340L Resin Outdoor Storage Box
Price ~Β£70 | 340L capacity | 119 x 54 x 60 cm | Double-wall resin | 450lb capacity | Lockable
The DWVO 340L is the sweet spot of price and performance. The double-wall construction makes it more rigid than single-wall competitors, and the wood-texture finish looks genuinely good on a patio. At 340L it holds a full cushion set with room for a few tools. The 450lb (204kg) weight capacity means you can sit on it without worrying.
What sets it apart at this price point is the lockable lid, which most budget boxes skip. The grooved texture hides scratches and weathering better than smooth resin. Assembly is straightforward, around 20 minutes with no tools required, the panels click together.
Pros
- Best value for 340L capacity
- Double-wall construction
- Lockable lid
- Tool-free assembly
Cons
- No gas strut, lid doesn't stay open
- Brown only, no colour options
- Wheels not included
Grand Patio Deck Box 480L
Price ~Β£159.98 | 480L capacity | 146 x 69 x 63 cm | Resin | Smooth wheels | Lockable
When you need to stash serious garden gear, the Grand Patio 480L delivers. It's one of the largest deck boxes available without jumping to commercial-grade pricing. The smooth-rolling wheels are a genuine advantage for anyone who needs to move storage around the garden or pull it under cover before storms.
An Amazon reviewer noted: "I store all my outdoor cushions, a retractable hose, and several pots in here with room to spare." The smooth-topped lid works as an impromptu table, though it's not designed as a seat. The light brown finish reads well against most UK patio styles.
Pros
- 480L for large gardens
- Wheels for easy moving
- Lockable lid
- Flat top doubles as table
Cons
- Very large footprint
- No gas strut on lid
- Not designed for seating
COSTWAY Garden Storage Box 380L
Price ~Β£75 | 380L capacity | 122 x 58 x 62 cm | Resin (grooved texture) | Lockable | Handles
The COSTWAY sits between the compact Keter Marvel+ and the massive Grand Patio, making it a sensible middle ground for most UK gardens. At 380L it handles a full cushion set plus accessories. The grooved texture looks more premium than flat resin and hides wear well.
The built-in handles on each side make repositioning practical, and the lockable hasp adds genuine security for anyone storing valuable tools. The black finish works in modern garden schemes. Assembly is click-together with no tools needed, around 15 minutes.
Pros
- Good capacity at mid-range price
- Built-in handles
- Lockable hasp
- Fast tool-free assembly
Cons
- Only available in black
- No wheels (handles only)
- Lid doesn't lock shut with padlock
Keter Marvel+ 270L Outdoor Storage Box
Price ~Β£53.90 | 270L capacity | 115 x 50 x 60 cm | 65% recycled resin | Lockable | Graphite finish
The Keter Marvel+ is the compact choice for smaller patios, balconies or wherever space is tight. At 270L it still holds a standard set of outdoor cushions. The graphite finish is more modern than the wood-effect alternatives, and the 65% recycled content gives it solid green credentials.
An Amazon reviewer noted: "Fits perfectly in the corner of our small patio and holds all our seat cushions. The lid seals well, no water inside after heavy rain." The lockable hasp adds peace of mind if you're storing tools or garden chemicals. Assembly is quick, around 15 minutes.
Pros
- Compact for small spaces
- Lockable lid
- Modern graphite finish
- 65% recycled material
Cons
- 270L won't fit large cushion sets
- No seating capability
- No wheels or handles
How to Choose a Garden Storage Box
The right storage box depends on three things: what you're storing, how much space you have, and whether you want it to double as furniture.
Capacity: A standard outdoor cushion set (4 seat cushions + 2 back cushions) needs roughly 200-250L of space. If you're also storing tools, a hose or garden accessories, aim for 340L+. For serious storage needs, 480L+ gives you room to spare.
Material: Resin is the best all-round choice for UK gardens. It won't rot like wood, won't rust like metal, and needs zero maintenance. Look for recycled content (most Keter models use 60-75% recycled plastic). Wooden potting benches look lovely but need annual treatment to survive British weather.
Security: If you're storing tools or anything valuable, a lockable lid is essential. Most resin deck boxes include a hasp for a padlock. Budget models sometimes skip this feature.
Mobility: Larger boxes (480L+) are heavy when full. Wheels make a real difference if you need to move the box for cleaning or storms. Smaller models are light enough to shift by hand.
Dual use: If your patio is small, a bench-storage combo like the Keter Eden gives you seating without sacrificing storage. Just check the weight capacity if you plan to sit on it regularly.
Frequently Asked Questions
Final Verdict
For most UK gardens, the Keter Westwood 570L is the pick. It has the capacity to handle a full cushion set with tools, the gas-piston lid is genuinely useful, and the lockable hasp adds real security. The wood-effect finish looks good on any patio and the recycled resin needs zero upkeep.
If space is tight, the Keter Eden Bench 265L gives you seating and storage in one compact package. And for pure value, the DWVO 340L delivers solid build quality and a lockable lid at a price that's hard to beat.
Whatever you pick, remember: resin is the way to go for UK weather. It won't rot, won't need painting, and most models are made from recycled materials. Measure your space first, check the capacity against what you need to store, and you'll find the right box for your garden.
Sam Baker
Garden Tools Writer, MyLushGarden
Sam writes about garden tools and equipment. He has used and broken enough strimmers and secateurs to know which specs matter.
Last reviewed: August 19, 2026 Β· Evidence-based review Β· Contains affiliate links