Pressure-treated timber · 15-year anti-rot protection
Free UK mainland delivery · Order by 2pm
Garden buildings.
Ready for tomorrow.
Pressure-treated timber · 15-year anti-rot protection
Free UK mainland delivery · Order by 2pmGarden buildings.
Ready for tomorrow.
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80 sq ft · free UK delivery
Explore 4x20 (20x4) garden buildings — a 80 sq ft footprint. Available configurations show their current prices, which are checked again at checkout.
Compare available configurations
From £1,492.91
Made to your size in the shed builder
From £1,492.91
Available to order online — tap through for photos, details and the current price.
Internal height 1757mm eaves · 2021mm ridge
£1,492.91£1,716
Order by 2pm, delivered tomorrow
Internal height 1757mm eaves · 2021mm ridge
£1,545.11£1,776
Order by 2pm, delivered tomorrow
Internal height 1757mm eaves · 2021mm ridge
£1,545.11£1,776
Order by 2pm, delivered tomorrow
Internal height 1757mm eaves · 2021mm ridge
£1,492.91£1,716
Order by 2pm, delivered tomorrow
Internal height 1757mm eaves · 2021mm ridge
£1,492.91£1,716
Order by 2pm, delivered tomorrow
Internal height 1887mm front · 1757mm rear
£1,492.91£1,716
Order by 2pm, delivered tomorrow
Internal height 1887mm front · 1757mm rear
£1,492.91£1,716
Order by 2pm, delivered tomorrow
Internal height 1887mm front · 1757mm rear
£1,492.91£1,716
Order by 2pm, delivered tomorrow
Internal height 1887mm front · 1757mm rear
£1,545.11£1,776
Order by 2pm, delivered tomorrow
Internal height 1887mm front · 1757mm rear
£1,545.11£1,776
Order by 2pm, delivered tomorrow
Internal height 1757mm eaves · 2021–2417mm (by width) ridge
£1,941.83£2,232
Order by 2pm, delivered tomorrow
Internal height 1887mm front · 1757mm rear
£1,941.83£2,232
Order by 2pm, delivered tomorrow
Ask us about availability for your chosen 4x20 building. Eligible in-stock orders placed by 2pm qualify for free next-working-day UK mainland delivery.
Plan a firm, level base slightly larger than 4ft x 20ft. Check the exact building instructions and base requirements before you order.
Yes — free next-day delivery to the UK mainland on in-stock flat-pack buildings. We don't deliver to the Scottish Highlands and Islands, the Isle of Wight, the Isles of Scilly or Northern Ireland.
Each size comes in set door and window configurations — single or double doors, with or without windows. Pick the one that suits where it sits.