10 Best Waterproof Garden Storage Boxes of 2024

If you’re looking for a garden box that’s perfect for storing garden equipment, furniture and toys, but also doubles up as a comfortable bench seat, the Keter Westwood 570L Outdoor Storage Box is a great option to consider. 

This versatile box has a 570 L capacity and features decorative wood-style panels that give it an aesthetically-pleasing finish. As you can see from the photo above, the one on my patio looks really smart!

Made from durable and weather-resistant resin, this box won’t fade in strong sunlight and provides good water resistance from rain. It is fitted with a piston-assisted lid so you don’t need to hold the lid up when accessing the box.

In terms of storage, this box has enough space to hold a range of garden tools and items. Putting it together takes around 20 minutes and once complete the overall dimensions are 140 x 60 x 84 cm. It also doubles up as a bench seat and it has a weight capacity to hold two average adults. 

The only thing to note is that where the lid is flat, instead of sloped, water can occasionally pool on the top. This means that if the lid isn’t opened carefully, some water can run from the lid into the box. 

Overall, this storage box provides great value thanks to its dual functionality. It’s the best storage box if you’re after versatility; the capacity offers plenty of storage but it can also be used as an additional piece of garden furniture.

If you’ve got a large garden and you’re constantly struggling for storage space, the Keter Store-It Out Ultra Outdoor Garden Storage provides 2000 L of additional storage. It’s the best storage box if you want a large capacity and is capable of storing two 360 L wheelie bins or three 120 L wheelie bins. 

Alternatively, this plastic storage box can be used to store bicycles and scooters, which is how I use it at the front of my house. As you can see, it tucks in neatly at the side, and we’ve put it on a self-made brick base.

However it would also be good for garden machinery, tools or garden furniture cushions too.

There are built-in shelf supports, so you can install shelves and use it as an alternative to a garden shed. It measures 177 x 113 x 134 cm altogether.

The box allows easy access to the contents; the lid opens upwards and the front doors open completely. Also, the lid is hydraulic piston assisted so, once opened, it’ll stay open. 

If you want to use this storage box to store a wheelie bin, there’s a bin opening kit included which will allow the bin lids to open at the same time as the storage box lid.

Assembly generally takes around an hour, though be prepared for some of the holes not to line up properly – some may need redrilling.

The construction of this storage box is waterproof but the air vents can sometimes allow some rain through. It’s therefore best stored in a sheltered area. 

If it’s storage space that you’re after, this is the best storage box thanks to its large capacity. It requires a fair amount of space but will neatly fit up to three wheelie bins or other gardening tools. 

If you’re looking for a spot to store your wheelie bins out of sight, the Keter Store It Out Pro Outdoor Storage Box is a great choice. This watertight storage box has been designed for two 240 L wheelie bins, but it can also be used to store garden tools and equipment thanks to its enormous 1200 L capacity. 

Despite having a large capacity, the box’s footprint remains reasonably modest at 132 x 76 cm. It tucks up neatly against my wall and the wood-effect panels are tidy and aesthetically pleasing.

To access inside the box, the lid lifts up and the two front doors open outwards. This gives you full access to the interior. Shelves can also be installed using the built-in supports. 

I use it to store my lawn mower, strimmer, gas canister (during winter) and a few other bits and bobs.

The doors and lid can be padlocked closed for additional security.

The lid is piston-assisted which makes it easy to open. It stays up by itself which allows you to access the interior with both hands free. 

You can also attach the lid of the storage box to the lid of your bin using the included chain. This will open the lid of your bin at the same time as the box allowing for easy rubbish disposal.

The box is best stored out of direct sunlight to prevent the top from warping over time. 

If you’re looking to conceal ugly wheelie bins in either your front or back garden, this is the best garden storage box for wheelie bin storage. It offers an attractive and functional solution for other gardening equipment too. 

The Keter Marvel+ Waterproof Garden Storage Box is a medium-size waterproof box with a practical and stylish design. This box comes in a graphite grey finish and it has an attractive wood panel effect. While many outdoor storage boxes have a very basic design, this box is stylish and won’t clash with the rest of your garden décor.

With a roomy 270L capacity and a simple opening mechanism, this box is both practical and convenient. The lid simply lifts up using the integrated handle, while the built in handles at either side can be used to transport the box.

There’s also a set of wheels provided, so the box can easily be pulled across hard ground. It should be noted however, that the box will still need to be lifted at one side to move it.

Durable, weatherproof, maintenance free and UV resistant, this box is designed to last. It’s perfect for storing garden furniture cushions, blankets or even small tools, while it’s strong enough for a lightweight adult to sit on if needed. Its versatility and durability makes it great value.

If you’re looking for a weather resistant box with adequate capacity for smaller gardening tools, the Keter Marvel+ Garden Storage Box is the best outdoor storage box to consider.

The Keter City Waterproof Garden Storage Box is for those who don’t have a huge amount of space in their garden. It’s the best garden storage box if you’re after something compact, measuring just 57.8 x 44cm. At 55cm tall, it still benefits from a 113L capacity.

This plastic storage box has a neat design, with a number of practical as well as aesthetic features. The wood effect panelling is very attractive, while the handles can be used to move the box to the right location. The lid lifts easily, and it can be locked if needed, although you’ll need to purchase a lock separately.

Those of you with little DIY experience can breathe a sigh of relief when I tell you that this box is very easy to assemble. While the small size helps with this, the reality is that it’s designed very well. Each piece simply clicks together and assembly takes just a few minutes.

Finally, this outdoor storage box is fully waterproof. It’s made from durable, weather resistant and maintenance-free plastic. The only downside is it’s very lightweight and, when not filled with heavy items, may not stand up well to strong winds.

This box marks fantastic value, with a noticeable difference in price between this and larger boxes on the market. If you’re looking for a neat and compact storage box, this Keter City Storage Box is a great option.

The Keter Store it Out Nova Outdoor Garden Storage Box is one of the best storage boxes overall thanks to its watertight design, spacious 880 L capacity and ease of assembly. 

This box is made from plastic resin with wood-effect panels. It has a 880 L capacity and measures 132 x 71.5 x 113.5 cm. The capacity rivals some of the largest outdoor storage boxes featured on this page, but the footprint remains relatively compact; it can be tucked up against a wall even in smaller outdoor spaces. 

The entire front section of this outdoor storage box opens up, which makes it extremely easy to access the contents. It also has a hinged lid for top-down access. The bolt can be locked for an extra layer of security and is fitted with a padlock hasp. 

Due to the design of this garden storage box it is also useful for wheelie bin storage. Alternatively, there are built-in shelf supports so you can add your own shelves and store tools.

The construction is watertight, even in heavy rain, and the built-in ventilation helps prevent the contents from getting damp. 

Assembly is straightforward and takes around 20 to 40 minutes. 

The only feature this box is lacking is a piston assisted lid. The lid does not support itself and needs to be held up, or lent against a wall. 

If you’re looking for watertight garden storage with a large capacity storage box, this is one of the best garden storage boxes to consider.  

If you’re after a storage box that doesn’t look like a storage box at all, the Keter Eden Bench Outdoor Storage Box is a good choice. This plastic resin box looks like a smart garden bench thanks to the wood-style panelling; however, unlike normal benches, the lid lifts to reveal a spacious 265 L storage compartment. 

This bench comfortably seats two adults and makes an attractive addition to the garden. It has armrests and you could put cushions on top for added comfort. The lid has a hasp for a padlock to keep it closed. 

The outdoor storage box is well designed with good weather resistance. There’s even a channel at the back to drain water from the seat. This means that even when you open the lid the contents should remain dry. 

Assembly is relatively easy (and can be done in around 30 minutes), though some physical strength is needed to click some of the parts into place. 

All in all, this is the best garden storage box if you want practical garden furniture that also offers storage. Although the capacity isn’t enormous, it’s more than spacious enough for outdoor blankets, cushions, garden games or a couple of gardening tools.

The Lifetime Waterproof Garden Storage Box has a generous 439 L capacity and a pleasant trunk-like design. It’s suitable for storing a range of garden accessories outside and could also be used to store pillows, blankets and games in a conservatory or sun room.

This garden storage box has an unobtrusive design, it comes in an attractive desert-sand colour and has aesthetic wood-style panelling. For this reason, it’s the best garden storage box if you want something for either indoor or outdoor use.

The trunk opens with a simple hinged lid that and has moulded handles so you can easily move around.

In terms of weather resistance, this box is made from rigid dual-wall high-density polyethylene, and it’s very strong. The weather and water resistant seal protects the contents even in heavy rain.

Assembly can be a little challenging and it’s best not to rush the process. Ideally, assemble the box when you’ve got plenty of time and the help of an extra pair of hands!

Due to this box’s decent capacity, great design and flexibility to be used both inside and out, this is one of the best garden storage boxes overall.

Fans of rattan furniture will love the Keter Borneo Waterproof Garden Storage Box. It’s the best garden storage box in terms of style with a decorative wicker-style finish that pairs well with most garden furniture. It’s made from durable, weather-resistant plastic that won’t fade in strong sunlight.

This garden storage box is highly practical thanks to its spacious 416L interior and piston assisted lid. It’s very easy to access the contents of the box; the lid won’t slam shut if you drop it. This box can be used to store a whole range of garden accessories or tools, and it even doubles up as a seating area for two adults.

Unlike some of its competitors, this outdoor storage box is extremely easy to assemble. It can be put together in just 10 minutes and it weighs just over 14kgs. It’s easy enough for two people to carry, but it’s not so light that it’s at risk of being blown around by strong winds.

Representing great value given the stylish design and spacious interior, the Keter Borneo Outdoor Storage Box is well worth considering if you’re in need of a lot of storage.

With an 850 L capacity and an affordable price tag, the Duramax StoreAway 850L Plastic Garden Storage Box is the best outdoor storage box if you’re after excellent value. 

This outdoor storage box is perfect for bikes, BBQs, outdoor equipment and accessories. It has a roomy 850 L capacity and a relatively small footprint given its size, measuring 130 x 74 cm. There’s space to fit two 120 L wheelie bins inside the box and it even has a sloped threshold that makes it easy to get bins in and out. 

This box is easily accessible; the hinged lid simply opens upwards and allows the two doors to open outwards. There are also built-in shelf supports so you can load it with garden tools if you choose to use this storage box in place of a garden shed. The lockable latch helps keep your garden equipment secure. 

In terms of weather resistance, this garden storage box works best when placed in a sheltered area. It is water resistant but may leak if exposed to prolonged heavy rainfall. 

All in all, this outdoor storage box is an affordable piece of garden furniture with a large capacity. It may require a compromise when it comes to waterproofing, but it’s noticeably more affordable than many outdoor storage boxes of a similar size.