All 4 plastic sheds in this collection, ranked on size for the money, guarantee and features. Use the finder to narrow them down.
Why it ranks here: low price per sq ft for a plastic shed, 10-year guarantee, well equipped (floor, windows, lock or double doors), 26% off the RRP.
Why it ranks here: mid-range price per sq ft, 10-year guarantee, well equipped (floor, windows, lock or double doors), 25% off the RRP.
Why it ranks here: low price per sq ft for a plastic shed, 10-year guarantee, well equipped (floor, windows, lock or double doors).
Why it ranks here: higher price per sq ft than most, 10-year guarantee, well equipped (floor, windows, lock or double doors).
How we score. The value score is our own sum from the listed specs and Shedstore's price. It is not a customer review and we have not tested the products. For a shed: 45% is price per square foot against other sheds, 25% is guarantee length, 20% is features (floor, windows, lock, double doors) and 10% is any saving off the RRP. Bases are scored on price per square foot and guarantee, storage boxes on price per litre, guarantee and lock. Give us your space and it becomes a match score that also rewards the products that make best use of it.
Our 6x4 plastic sheds are compact garden storage sheds for a side return, a patio corner or a strip along the fence: big enough for a push mower, long-handled tools and a bike, small enough for a terraced-house garden. Every one is a Palram Canopia Skylight with a polycarbonate floor included, an apex skylight roof and a 10 year guarantee, sold by Shedstore.
You can choose a 4x6 (deep, with the door on the narrow end) or a slimmer 6x3 (wide, with double doors on the long side), in grey or tan. Each needs a level base: our 6x4 shed bases fit both. For even smaller sizes, see our small plastic sheds.
A 6x4 shed gives you about 2 square metres of floor, which is the sweet spot for a small garden: room for the mower, a strimmer, spades, rakes and a bag of compost without taking over the lawn. The question is less "which brand" and more "which shape", because a 6x4 garden shed can face you in two ways.
If you mainly store a lawn mower or a wheelbarrow, the 6x3's wider opening is the easier option. If you want the most floor area, or a bike stored lengthways, pick the 4x6.
Here is every compact plastic storage shed on this page, with the dimensions from the Shedstore listings. Prices change daily, so they are rounded; the grid above shows today's price.
| Shed | Size (ft) | Outside (incl. overhang) | Floor area | Ridge height | Door | Colour | Packed weight | Typical price |
|---|---|---|---|---|---|---|---|---|
| Palram Canopia Skylight 4x6 | 4 x 6 | 1.21m x 1.77m | 2.14 m² | 2.035m | Single, 660mm x 1.71m | Grey | 35kg | about £340 |
| Palram Canopia Skylight 4x6 | 4 x 6 | 1.21m x 1.77m | 2.14 m² | 2.035m | Single, 660mm x 1.71m | Tan | 33.5kg | about £425 |
| Palram Canopia Skylight 6x3 | 6 x 3 | 1.85m x 0.9m | 1.67 m² | 2.17m | Double, 1.275m x 1.71m | Grey | 32.7kg | about £330 |
| Palram Canopia Skylight 6x3 | 6 x 3 | 1.85m x 0.9m | 1.67 m² | 2.17m | Double, 1.275m x 1.71m | Tan | 31.9kg | about £425 |
What every shed on this page shares:
Inside, the 4x6 measures 1.06m x 1.71m and the 6x3 1.71m x 0.85m (from the tan listings), so allow for the frame when you measure your mower.
The grey and tan versions are the same size, but they are not quite the same shed. The tan versions list 1mm polycarbonate walls, a 0.9mm skylight roof, front and rear vents, and ratings of 90km/hr wind and 75kg/m² snow load. The grey models come with a galvanised steel perimeter base and a Hilti screw anchoring kit. The grey ones have also been running £85 to £95 cheaper, which makes the grey model the cheapest 6x4 option here.
The 4x6 gives you 2.14 square metres, the most storage of any shed this size we list. Its walls are high impact polycarbonate with full UV protection, so they won't fade, go brittle or rot, and the frame is aluminium, so nothing can rust. The skylight roof panels let soft light through (Palram quotes 10% on the tan model), enough to find things on a dull day, yet stay opaque from outside so nobody can see what you keep inside. With a 660mm door, check that the widest thing you store (a mower deck or a wheelbarrow) fits through before you buy.
The 6x3 is the slimline choice, only 90cm deep, so it fits where a deeper building won't. The pair of doors opens to 1.275m with a low threshold, so a mower or wheelbarrow rolls straight in with no lip to lift over. It is also the tallest of the four at 2.17m to the ridge, so most adults can stand in the doorway. Long-handled tools stand upright along the back wall, and one bike fits lengthways.
Pick grey for the lowest price and the steel perimeter base in the box. Pick the warmer colour if you want the vents, the listed wind and snow ratings, or a warmer colour that sits better next to timber fencing and brick. Both colours are UV protected, so neither will fade to a chalky finish.
A compact shed fills up quickly, so it helps to plan the layout. Here is what fits in these sheds, based on their floor sizes and doors:
If your list is longer than that, step up a size. Our 6x6 plastic sheds add about half as much floor again, and 8x6 plastic sheds are the size most UK gardens end up with.
Shed sizes are given in feet, and retailers don't agree which number comes first. Usually the first number is the width across the front (the door side) and the second the depth, so a 4x6 shed has the door on the 4ft end and a 6x4 shed on the 6ft side. Always check the drawing on the product page rather than the name.
The feet are rounded, too. A "6x4" Palram Canopia shed is 1.21m x 1.77m including the roof overhang, which is closer to 4ft x 5ft 10in. A "6x3" is 1.85m x 0.9m. When you measure your space, use the metric dimensions in the table and leave at least 30cm around the outdoor storage shed for building it and for the doors.
A true 7x4 plastic shed is rarer; in plastic at this size you are mostly choosing between 6x4, 6x3 and 6x5. If you need the extra length, the step up is a 6x6 or 6x8. If you only need storage for a few hand tools, cushions or the hose, a plastic garden storage box costs far less.
At this size you will see plenty of metal sheds and a few wooden ones at similar prices, so it is worth knowing the trade-offs:
For a small outdoor storage shed that you want to forget about, a plastic garden shed is the low maintenance option, and the most waterproof of the three once it is on a good base. Our plastic vs wooden shed guide goes into more detail.
Every shed in this size on our site has an apex roof: two slopes meeting at a central ridge. An apex roof gives more headroom in the middle (2.035m to 2.17m here) and sheds rain and snow to both sides. A pent roof slopes one way and sits lower, which suits a shed tucked under a window or against a house wall; our small plastic sheds include low pent designs. For a metal or plastic roof, the slope matters more than the material: water must run off, not pool.
Keter makes popular 6x4 resin sheds, notably the Keter Darwin (wood-effect, with single or double doors) and the Keter Manor, a pent roof outdoor storage shed. Keter resin is thicker and heavier than polycarbonate, and Keter's sheds often use steel reinforcement in the roof. Shedstore doesn't sell either at the moment, so they aren't on this page. For the Keter models we do list, from the Factor to the Newton Plus, see our Keter sheds. Every shed on this page is from Palram Canopia, whose whole range is on our Palram Canopia sheds page.
Every plastic shed needs a flat, level, solid base. On soft ground the frame twists and the doors stop closing. Both footprints (1.10m x 1.75m for the 4x6 and 1.75m x 0.88m for the 6x3, at the base) fit on a ProBASE 6x5 shed base, a plastic grid kit you fill with gravel, at about £110. A concrete foundation or a paved area works too, and it is what the Hilti screws supplied with the grey models are designed for. On a slope, see our adjustable shed bases.
The panels click into the frame, and Palram Canopia has an assembly video for this range. Allow an afternoon with two people. The kits weigh 32kg to 35kg packed, so they are easy to carry through a house, but a light plastic garden shed must be fixed down with its anchors or it can shift in a gale.
Each shed is lockable with a pad bolt, but the padlock isn't included, so budget for a good one. The skylight panels are opaque from outside, which keeps tools out of sight. For alarms, hasps and stronger locks, see our shed security page.
Almost certainly not. In England and Wales, a garden shed is usually permitted development if it is single storey, not in front of the house, no more than 2.5m high when within 2m of a boundary, and outbuildings cover no more than half the garden. The tallest shed here is 2.17m, so any of them can go right next to the fence. Listed buildings, conservation areas and National Parks have tighter rules. See the Planning Portal guide to outbuildings and the government's permitted development technical guidance; in Scotland, check mygov.scot.
Every shed on this page does: an anti-slip polycarbonate floor is included. You still need a level base underneath. For other sizes with a floor included, see our plastic sheds with floors.
Here, the grey Palram Canopia models: about £330 for the 6x3 and £340 for the 4x6. The 4x6 works out cheapest per square metre, at about £160. For other budget sizes, see our cheap plastic sheds.
A push mower fits in either size. Check the width of the mower against the door: 660mm on the 4x6 and 1.275m on the 6x3.
The Skylight 4x6 is 2.035m at the ridge and the 6x3 is 2.17m, both with 1.745m eaves and 1.71m high doors.
The polycarbonate panels and apex roof shed rain well, and the floor is weatherproof. As in any closed shed, condensation can form on cold mornings, so open the doors on dry days; the tan versions also have vents.
Palram Canopia gives a 10 year guarantee on all four. The panels are UV protected and the frame is aluminium, so they won't rot or rust.
