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Best garden storage boxes to organise your outdoor space

(Amazon / Argos / Yahoo Life UK)
The best garden storage boxes to snap up this year. (Amazon / Argos / Yahoo Life UK)

If you consider yourself a budding horticulturist or generally just like to keep your garden in tip-top shape, then it's likely you've acquired an extensive range of gardening tools over the years. But chances are, you've not got enough space to store them.

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It happens to the best of us — we don't think before we buy. Which is why now's the perfect time to think about investing in a garden storage box to house all your green fingered bits and bobs ahead of summer.

Sturdy outdoor storage comes in various shapes, colours, materials and sizes, and is ideal if your garage or shed is full to the brim or you're simply short on storage space.

Best places to buy garden storage boxes

Not only compact and easy on the eye, they're often super affordable and (sometimes) even double up as garden furniture.

Stumped for choice? Fear not, as we've compiled a list of the top-rated designs to suit everyone’s needs and budgets. Here's the best garden storage units, ranging in price from as little as £28 to £246.

What should I look out for in a garden storage box?

  • Size — Consider the actual size of your space, whether it's going to be indoors or out, placed on a patio or down a side passage. You don't want to end up with something that's too small or too big. Similarly, determine how much you want to store inside.

  • Purpose — Think about what you plan on storing away. Will it be used for garden tools or soft furnishings? It's also worth checking if the box comes with suitable shelving or compartments.

  • Colour — Reflect on the style of your garden, and what colours you want to spotlight.

  • Lock system — If you plan to use the storage box outside, then it's likely you'll want something that can be locked for added security. Check if there's a padlock hasp.

Best garden storage units for 2024

Capacity: 280 litres | Colour: Grey | Dimensions: H 56cm x W 117cm x D 45cm | Weight: 6.1kg

Fitting up to 280 litres worth of garden storage, this wood effect box comes with rollers for easy movement around your garden, as well as a padlock hasp for secure garden storage. It's great for storing everything from soft furnishings to garden tools and plastic toys, but isn't 100% waterproof so it's recommended you use protective waterproof bags if using to store bits outside. 

Average star rating: 4.3 / 5 - "Very pleased with this product (I bought two!!) Easy to build, feels strong and looks really nice — great price too, I would recommend."

Pros
  • Lockable
  • Comes with rollers to easily move
Cons
  • Not waterproof
£40 at Argos

Capacity: 1150 litres | Colour: Grey/Black | Dimensions: H 123.5cm x W 141cm x D 82cm | Weight: 33kg 

Our most premium pick in this list is from outdoor storage experts, Keter, and comes with thick, rib reinforced, double wall panels, a lockable, piston-assisted lid, and two swing front doors. It also boasts a modular design with the option for shelving, great for keeping your things organised and in the right place. Not stopping there, its sloped base makes it easy to retrieve items from inside, while its bin opening kit and built-in ventilation makes it perfect for storing bins.

Average star rating: 4.3 / 5 - "Great size" "Good and sturdy" "Well made"

Pros
  • Lockable
  • Large capacity
  • Option for shelving
  • Bin opening kit included
  • Weather-resistant
Cons
  • Takes approx two hours to assemble according to reviews
  • Heavy
£246 at Amazon

Capacity: 270 litres | Colour: Grey | Dimensions: H 57cm x W 116.7cm x D 44.7cm | Weight: 6.3kg

Keter Marvel+ has the capacity to hold 270 litres inside the faux wood effect container. What we love most about this product is the unit itself, which has built-in wheels and handles, and can also double up as extra seating for two people. 

Average star rating: 4.6 / 5 - "Easy to assemble. Looks good. Watertight so far. Holds quite a good amount of garden items."

Pros
  • Easy to assemble
  • Can double up as garden seating
  • Weather-resistant
Cons
  • Quite lightweight so requires heavier contents to hold down while outside
£37 at Argos

Capacity: 322 litres | Colour: Grey | Dimensions: H 57cm x W 116.7cm x D 44.7cm | Weight: 6.3kg

With 95% of shoppers recommending this product over on Argos, it's a clear winner as far as garden storage boxes go. Complete with a simple, lockable design, its biggest selling point has to be the unique butterfly style lid that's been designed to keep rain water out and your contents dry. 

Average star rating: 4.7 / 5 - "Very good design, so easy to put together and totally waterproof."

Pros
  • Lockable
  • Weather-resistant
  • Easy to assemble
Cons
  • No additional compartments or shelving inside
£44 at Argos

Capacity: 113 litres | Colour: Grey | Dimensions: H 55cm x W 57.8cm x D 44cm | Weight: 3.55kg

This storage box has received an average of 4.8 out of 5 stars. The compact storage unit, which can hold up to 113 litres, is made from a fade-free plastic, so it can withstand the elements and still looks brand new.

Average star rating: 4.8 / 5 - "This is a great storage box - smart and roomy inside yet does not take too much space. Very easy to assemble.”

Pros
  • Good for small outdoor spaces
  • Weather-resistant
  • Sturdy
Cons
  • Quite lightweight so requires heavier contents to hold down while outside
£28 at Argos

Capacity: 454 litres | Colour: Grey | Dimensions: H 60.3cm x W 145cm x D 69.7cm | Weight: 17.5kg

Ticking all the boxes with its stylish, decorative wood-panel finish, this unit can hold over 450 litres — one of the largest capacities out of our selection, and even doubles up as outdoor seating. This design is made from durable, weather-resistant plastic, which is fade free, complete with a piston-assisted lid and lock option for added security. 

Average star rating: 4.6 / 5 - "Sturdy and durable, this is by far the best and most reliable outdoor storage container we have purchased, so much so, a second is on order now for other items to be stored outside."

Pros
  • Sturdy design
  • Large capacity
  • Easy to assemble
  • Automatic opening mechanism
Cons
  • No additional compartments or shelving inside
£93 at Amazon
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£93 at Argos

Capacity: 83 litres | Colour: Grey | Dimensions: H 52cm x W 56cm x D 43cm | Weight: 5kg

Decorative yet practical, this 83-litre small storage box combines comfortable seating and convenient storage in one. It can be used indoors or out, features a durable resin, and is super easy to assemble. Plus, it's lightweight so can be moved around with ease. 

Average star rating: 4.2 / 5 - "Purchased this for storing muddy boots after dog walking. Perfect size, easily accommodates four pairs of adult boots. Quick delivery, very easy to assemble."

Pros
  • Easy to assemble
  • Doubles up as seating
Cons
  • Small capacity
£70 at John Lewis