Best Outdoor Storage Box Under £150
Keep your garden tidy and your cushions, tools, and toys dry without breaking the bank. We have found the best outdoor storage boxes under £150 based on capacity, weather resistance, and real owner feedback.
Quick answer
For the best all-round value, the Keter Store-It-Out Outdoor Storage Box offers a robust resin build, 300-litre capacity, and a weatherproof design that outperforms most rivals at this price. For budget-conscious buyers, the Suncast 120-litre deck box is a solid, lightweight alternative.
Why trust ToolBuyerHub
- Tested on specs (capacity, material, lockability)
- Weather resistance & UV protection compared
- Aggregated owner reviews from major retailers
- Build quality & warranty checked
- Brand reliability in outdoor storage
- No fake hands-on claims
Research updated June 2026.
Keter Store-It-Out Outdoor Storage Box
Durable resin, 300-litre capacity, and a 10-year warranty make this the safest bet under £150.
| Product | Best for | Key Spec | Rating | Price |
|---|---|---|---|---|
| Keter Store-It-Out | Best Overall | 300 L, Resin | 4.5 / 5 | Under £150 |
| Suncast 120L Deck Box | Budget Pick | 120 L, Resin | 4.2 / 5 | Under £60 |
| Lifetime 60008 | Heavy Duty | 340 L, HDPE | 4.3 / 5 | Under £150 |
| Forest Garden 4x3 | Wood Finish | 300 L, FSC Timber | 4.1 / 5 | Under £150 |
| Rowlinson 3x2 | Small Spaces | 200 L, FSC Timber | 4.0 / 5 | Under £100 |
Keter Store-It-Out Outdoor Storage Box
Best OverallPros
- Excellent weather resistance
- Large 300-litre capacity
- Lightweight and easy to move
Cons
- Padlock not included
- Not suitable for heavy power tools
The Keter Store-It-Out is a perennial favourite among UK gardeners for good reason. Made from durable, UV-protected resin, it resists fading and cracking even after several British summers. The 300-litre capacity easily swallows four patio chairs and a table set, or a dozen large garden cushions.
Owner reviews consistently praise its ease of assembly (most report under 15 minutes) and the fact that it remains watertight in heavy rain. The integrated lid stays open safely, and the box can be locked with a standard padlock for added security. At this price point, it offers the best balance of size, durability, and value.
Suncast 120 Litre Deck Box
Best BudgetPros
- Very affordable
- Lightweight and portable
- Decent weather seal
Cons
- Smaller capacity
- Lid may warp over time in extreme heat
The Suncast 120-litre deck box is the go-to option if you only need to store a few cushions or small garden tools. It is incredibly lightweight at just over 5 kg, making it easy to move around the patio. The resin construction is UV-resistant and includes a built-in weather seal to keep contents dry.
Owner feedback highlights its value for money and simple assembly. Some users note that the lid can warp slightly if left in direct sunlight for long periods, but for the price, this is a minor issue. It is an excellent entry-level storage box for small gardens or balconies.
Lifetime 60008 Outdoor Storage Box
Best Heavy DutyPros
- Largest capacity in this price range
- Very sturdy HDPE construction
- Reinforced lid can support a person sitting
Cons
- Heavier and harder to move
- Assembly takes longer
The Lifetime 60008 is a beast of a storage box. With 340 litres of space, it can hold large garden tools, bulky cushions, or even a small lawnmower. Made from high-density polyethylene (HDPE), it is much tougher than standard resin and can withstand heavy use and extreme weather.
Owner reviews frequently mention the reinforced lid, which is strong enough to use as a bench seat. The box also features a built-in lock and has excellent water resistance. The main trade-off is its weight (15 kg) and more complex assembly, but for those needing maximum capacity and durability, it is a top contender.
Forest Garden 4x3 Pressure Treated Store
Best Wood FinishPros
- Natural wood aesthetic
- Pressure treated for rot resistance
- Very long warranty
Cons
- Heavy and difficult to assemble
- Requires annual treatment
For those who prefer a natural wood look, the Forest Garden 4x3 pressure treated store is an excellent choice. Made from FSC-certified timber, it is pressure treated to resist rot and decay, and comes with a 15-year guarantee. The 300-litre capacity is comparable to the Keter, but the wood construction gives it a more traditional garden aesthetic.
Owner reviews appreciate the durability and the fact that it blends well with wooden fences and sheds. However, it is much heavier (25 kg) and requires more assembly effort. It also needs annual treatment with a wood preservative to maintain its appearance and longevity.
Rowlinson 3x2 Pressure Treated Storage Box
Best for Small SpacesPros
- Compact footprint
- Pressure treated for durability
- Natural wood look
Cons
- Smaller capacity
- Requires annual maintenance
The Rowlinson 3x2 storage box is designed for smaller gardens, balconies, or patios where space is at a premium. With a 200-litre capacity, it is ideal for storing a few cushions, small tools, or children's toys. Like the Forest Garden option, it is made from pressure-treated FSC timber and comes with a 10-year guarantee.
Owner reviews highlight its compact size and attractive appearance. It is easy to position in tight corners. The main drawbacks are the smaller capacity and the need for annual wood treatment. It is a solid choice for those who prioritise aesthetics and have limited space.
What to Check Before Buying an Outdoor Storage Box
Choosing the right outdoor storage box under £150 involves more than just picking the cheapest option. Consider these key factors to ensure you get the best value.
Capacity and size. Measure the space where you plan to place the box. A 300-litre box is great for cushions and small tools, but if you only need to store a few items, a 120-litre box may suffice and save space.
Material. Resin boxes are lightweight, maintenance-free, and weather-resistant. Wood boxes offer a natural look but require annual treatment. HDPE is the most durable but heavier.
Weather resistance. Look for UV protection to prevent fading, and a good weather seal to keep contents dry. Check owner reviews for water ingress issues.
Lockability. If you plan to store valuable items, ensure the box has a hasp for a padlock. Some boxes come with integrated locks, but most require a separate padlock.
Assembly. Resin boxes typically assemble in under 30 minutes with no tools. Wood boxes can take an hour or more and may require a screwdriver and drill.
Mistakes to Avoid
Ignoring the warranty. A longer warranty often indicates better build quality. Avoid boxes with less than a 5-year warranty.
Choosing the wrong material for your climate. In damp UK weather, untreated wood can rot quickly. Always choose pressure-treated timber or resin.
Forgetting about weight capacity. Check the maximum load for the lid if you plan to sit on it. Most resin boxes are not designed for sitting.
Not measuring the access path. Make sure the box can fit through your gate or door. Some large boxes are delivered in multiple pieces, but others come fully assembled.
FAQs
Can I leave an outdoor storage box out in the rain?
Yes, most outdoor storage boxes under £150 are designed to be weatherproof. Look for models with a built-in weather seal to keep contents dry.
Are resin storage boxes better than wood?
Resin boxes are lighter, maintenance-free, and more affordable. Wood boxes look more natural but require annual treatment to prevent rot.
How much weight can a storage box lid hold?
Most resin lids are not designed for sitting. Heavy-duty models like the Lifetime 60008 have reinforced lids that can support a person.
Do I need to lock my outdoor storage box?
It is recommended if you store valuable items. Most boxes have a hasp for a padlock, but the padlock is usually not included.
Can I use a storage box for garden tools?
Yes, but ensure the box is large enough. A 300-litre box can hold long-handled tools, while smaller boxes are better for hand tools and cushions.
How long does it take to assemble a resin storage box?
Most resin boxes assemble in 15 to 30 minutes with no tools. Wood boxes can take 1 to 2 hours and may require a drill.
What is the best outdoor storage box for a small balcony?
The Rowlinson 3x2 or the Suncast 120-litre deck box are both compact and suitable for small spaces.
Will a storage box fade in the sun?
Resin boxes with UV protection resist fading. Wood boxes will naturally weather over time unless treated with a UV-protective finish.
Can I sit on a resin storage box?
Only if the manufacturer specifies it. Most resin boxes are not designed for sitting. The Lifetime 60008 is one of the few that is.
What is the warranty on a typical storage box?
Resin boxes often come with 5 to 10-year warranties. Wood boxes from reputable brands like Forest Garden offer up to 15 years.
Our verdict
For the best all-round outdoor storage box under £150, the Keter Store-It-Out wins with its 300-litre capacity, durable resin build, and 10-year warranty. If you are on a tight budget, the Suncast 120-litre deck box offers reliable protection for a fraction of the cost. For heavy-duty needs, the Lifetime 60008 is the strongest option.