How Much Does It Cost to Build a Shed in the UK? (2026 Breakdown)

If you’ve priced up a garden shed recently, you’ve probably had the same shock most UK homeowners get: a decent-sized pre-built shed now costs anywhere from £1,500 to well over £3,000 once delivery and installation are added. The good news is that building your own costs a fraction of that — and it’s far more achievable than most people think. Here’s a realistic breakdown of what you’ll actually spend.

The Short Answer

For a typical 8×10 garden shed built yourself, expect to spend roughly £700–£1,200 on materials depending on timber prices in your area and the quality of cladding, roofing felt, and fixings you choose. The equivalent pre-built and installed shed from a garden centre or shed company typically runs £2,500–£4,000. That’s a saving of £1,500–£3,000 for a weekend or two of work.

Full Materials Breakdown (8×10 Shed Example)

Item	Typical UK Cost
Timber framing (C16 treated)	£250–£400
Cladding (shiplap or featheredge)	£200–£350
OSB/plywood for roof and floor	£100–£180
Roofing felt or EPDM	£40–£120
Door, hinges, hasp, window	£60–£150
Screws, nails, brackets, treatment	£50–£100
Total	£700–£1,300

Base costs are separate — a simple paving slab or timber bearer base can be done for under £100, while a concrete pad might add £150–£300 in materials if you lay it yourself.

What About Tools?

This is where people overestimate. You do not need a workshop full of kit. A circular saw or decent hand saw, a drill driver, a tape measure, a square, and a spirit level will build the entire shed. If you own none of these, £150–£250 buys everything from a mid-range brand — and you keep the tools for every future project. Many readers already have most of this in the garage.

The Hidden Cost Nobody Talks About: Bad Plans

Here’s the expense that wrecks most DIY shed budgets — wasted materials. Free plans found online are notorious for missing measurements, skipping steps, and giving no cutting list. The result is timber cut wrong, extra trips to the timber merchant, and in the worst cases an abandoned build with £400 of wood rotting under a tarp.

A proper plan with a complete cutting list means you buy exactly what you need, cut every piece once, and nothing goes in the skip. That single difference is usually worth £100–£200 on a typical build — more than the cost of any plans package on the market.

This is why we recommend working from a professionally drawn plan. In our full Ryan Shed Plans review, we looked at a package of 12,000 plans that includes exact materials lists, cutting lists, and 3D drawings for every design — the things that keep a build on budget.

DIY vs Pre-Built: The Real Comparison

A pre-built shed isn’t just more expensive — you’re also usually getting thinner cladding and lighter framing than you’d choose yourself, because manufacturers build to a price. When you build your own, every pound goes into materials rather than labour, delivery, showroom overheads, and margin. The shed you build for £900 is generally sturdier than the one you’d buy for £3,000.

The trade-off is your time: a first-timer should allow two to three days with a clear plan. If you’d rather see whether the plans themselves are up to scratch before committing, read our honest review here — including what we liked and what we didn’t.

See the 12,000 Shed Plans (with full cutting lists) »

Ways to Cut the Cost Further

Buy timber from a builders’ merchant rather than a DIY chain — trade yards are often 20–30% cheaper on framing timber. Ask about “regularised” C16 rather than premium grades for framing that will never be seen. Reclaimed windows and doors from salvage yards or Facebook Marketplace can save another £100. And build in late autumn or winter when timber demand (and sometimes pricing) dips.

How Much Does It Cost to Build a Shed in the UK