All 3 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, 15-year guarantee, well equipped (floor, windows, lock or double doors), 6% off the RRP.
Why it ranks here: mid-range price per sq ft, 15-year guarantee, well equipped (floor, windows, lock or double doors), 6% off the RRP.
Why it ranks here: mid-range price per sq ft, 15-year guarantee, well equipped (floor, windows, lock or double doors), 6% off the RRP.
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.
6x6 plastic sheds are the answer when a 6x4 is too tight but an 8x6 would swallow the lawn. You get room for a mower, a bike and the long-handled tools on a square footprint that tucks neatly into a corner. The resin walls won't rot or need painting. Better still, two people can build one in an afternoon.
Here you'll find the Keter Factor 6x6 and the slightly roomier Keter Newton Plus 7x7, both sold by Shedstore. Want something smaller? Try our 6x4 plastic sheds. If you need more space, step up to 8x6 plastic sheds.
A square garden shed is easy to place. It fits the corner where two garden fences meet, the end of a narrow garden or the spare patch behind the garage. And because it's as deep as it is wide, you can reach the back without climbing over everything at the front.
At this size you're looking at about 3.5 square metres of floor in the Factor 6x6. That's plenty of garden storage for a rotary mower, a strimmer, a bicycle stood against the back wall and the spades and rakes in a corner. Add shelving and the small stuff comes up off the floor too.
Plastic makes garden storage easier in a few ways.
Here's every shed in this range, width first. Outside sizes include the roof overhang, so we've added the inside or base measurements as well, which is the figure that matters when you prepare the ground. Shedstore's price changes often and the grid above always shows the latest one, so the table sticks to price bands.
| Shed | Size (ft) | Outside (m) | Inside or base (m) | Ridge height | Doors | Light | Floor | Guarantee | Price band |
|---|---|---|---|---|---|---|---|---|---|
| Keter Factor 6x6 | 6' x 6' | 1.78 x 1.96 | 1.62 x 1.82 inside | 2.08m | 1.39m double | 1 window + skylight | Yes | 15 years | Under £1,000 |
| Keter Newton Plus 7'5 x 7' (apex) | 7'5 x 7' | 2.30 x 2.24 | 2.10 x 2.19 base | 2.46m | 1.39m double | 2 windows + skylight | Yes | 15 years | £1,000 to £1,500 |
| Keter Newton Plus 7' x 7'5 (reverse apex) | 7' x 7'5 | 2.24 x 2.30 | 2.16 x 2.16 base | 2.46m | 1.39m double | 2 windows + skylight | Yes | 15 years | £1,000 to £1,500 |
All three come with a floor, steel-reinforced resin walls, vents and a 15 year guarantee. The Factor is the true 6 x 6 and the lower price. The Newton Plus gives you about half as much floor again, a taller apex roof and a second window for the extra spend.
Every model here is from Keter. That's no coincidence, as it's the brand most people mean when they search for a plastic storage shed at this size. Its sheds use thick moulded panels with a wood-effect texture, so from a few metres away they pass for a painted timber garden shed. They're durable too, which suits a garden that sees plenty of weather. The Factor comes in beige and the Newton Plus in grey.
The Factor is the classic Keter plastic shed 6x6 and a sensible first choice for most gardens. Its beige wood-effect walls are resin reinforced with steel. A heavy-duty resin floor comes in the box too. Inside you get 1.62m by 1.82m of floor under a 2.08m apex roof. That's deep enough for a bicycle and tall enough to stand a ladder upright.
The double doors open 1.39m wide with a padlock fixing and bolts. One framed window can go on either side, a skylight lets in more daylight and air vents help with condensation. Two shelves and their brackets are included, which matters more than you'd think, since resin walls can't take screws like timber.
The roof is rated for a snow load of 75kg per square metre. Two people can build it in about three hours with no special tools, according to the maker. The box weighs 88kg. Other sizes in the same range are on our Keter Factor sheds page.
If you've got extra room in the garden, the grey Newton Plus is the one to look at. It's about 2.3m by 2.2m outside, so it sits just over 7 x 7, with around 5 square metres of floor. That's storage space for a mower and a few bikes with the tools hung alongside.
The walls are double-wall Evotech resin with steel reinforcement and a grey wood-textured finish that won't peel, dent or rust. The ridge stands 2.46m high, the doors open 1.39m wide by 1.81m tall and there are two Victorian-style windows plus a full-length skylight. Built-in vents keep the air moving.
It comes two ways round. The 7'5 x 7' has a classic apex roof. The 7' x 7'5 is a reverse apex, with the ridge running across the front. Either way the modular panels let you choose where the doors and windows go, so pick the roof that looks best from the house. The Newton Plus range runs all the way up to 7'5 x 17', so see our Keter Newton Plus sheds page if you'd like to compare.
Want to see the whole brand together? Our Keter sheds collection has every size.
A 7x5 plastic shed and a 6x5 plastic shed are popular searches, but Shedstore doesn't list a plastic shed in either of those at the moment. Keter does make a Manor 6x5, but it isn't in Shedstore's range right now. Measure your gap first. If it's 1.8m deep, the Factor 6x6 is the nearest fit and offers more floor than a 6x5 would.
If your space is under 1.8m deep, look at the 4x6 and 6x3 models on our 6x4 plastic sheds page or the full range of small plastic sheds. For a slim spot where you only need to store cycles, plastic bike sheds are another option.
As a rough guide, here's what a shed this size will take.
Shelving makes the biggest difference to how much you can fit. The Factor includes two. Our shed shelving page has more ideas for resin walls. Got cushions or smaller garden tools that won't fit? A lockable box from our waterproof garden storage boxes range sits happily beside the shed.
Good news if you want a floor included. All three models here come with one, so there's nothing extra to buy. A floor keeps tools off damp ground and helps the walls stay square. Browse every model that includes one in our plastic sheds with floors collection.
A floor isn't a foundation, though. Set on bare lawn it can flex and sink unevenly. Once the frame twists the doors stop lining up. Every plastic storage shed needs a firm, level foundation underneath.
Keter asks for the Factor to be fixed to level concrete or paving. Slabs, a concrete pad or a gravel-filled plastic grid all work, as long as the surface is flat and at least as big as the shed.
The grids are compared on our 8x6 shed bases and 6x4 shed bases pages, with every size in shed bases. Got a slope? ProBASE's QuickJACK Kit 2 lists 6x6 and 7x7 sheds among its sizes and lifts a timber frame level without digging. You'll find it with the other adjustable shed bases.
A wooden garden shed is easier to fix things to and to repair. Treat it well and a good one can last for years. A metal shed is often cheaper, but it can dent and tends to drip with condensation. A resin storage shed sits between the two. It costs more than most metal sheds, yet it needs far less maintenance than timber and won't rot or rust. Our plastic vs wooden shed guide goes through the trade-offs in more detail.
Both models arrive flat packed. Keter puts the Factor at about three hours for two people. The Newton Plus box weighs about 137kg, so plan a few helpers and a dry, calm day. Shedstore lists delivery charges and lead times on each product page, so check the delivery date before you book your helpers.
The doors lock on every model, but none comes with a padlock. Fit a closed-shackle padlock, fix the shed down firmly and chain bikes inside. Locks and alarms are on our shed security page.
Usually not, as in England most garden sheds count as permitted development. A shed within 2m of a boundary can't be more than 2.5m tall. Both of these models stay under that, with ridges of 2.08m and 2.46m. Sheds can't go in front of the house and outbuildings can't cover more than half the garden. Listed buildings and conservation areas have tighter rules. The Planning Portal guide to outbuildings has the full detail. Wales, Scotland and Northern Ireland have their own versions.
For full specs and assembly guides, see Keter's own medium sheds range and ProBASE for the grid bases.
Roughly 1.8 x 1.8m, but real measurements vary. The Factor 6x6 is 1.78 x 1.96m outside and 1.62 x 1.82m inside.
For most gardens it's the Factor 6x6. You get a floor, two shelves, a window and a 15 year warranty in the lower price band. If you can fit an extra foot each way, the Newton Plus 7x7 gives you more floor and headroom.
Not directly, because even with a floor, lawn is too soft and uneven. Lay paving or a gravel-filled grid first.
Any closed garden shed can. Both models here have ventilation built in, which helps a lot. Keep the base dry and try not to store wet tools.
Both of these are covered for 15 years. The resin won't rot or rust either. On a level base with heavy snow brushed off the roof, a well-built plastic shed can easily outlast its cover.
Yes, but use shelving made for resin walls rather than screwing into the panels. The Factor 6x6 comes with two, plus the brackets.
