We have now designed, manufactured, delivered and fitted many of these 5ft x 13ft Apex Sheds for our wide customer base.
Explore the complete Apex Shed collection for expertly crafted solutions built to endure the UK’s demanding climate — and discover why the 5ft x 13ft Apex Shed stands out as a space-savvy storage powerhouse for modern British gardens.
When space is limited, but your storage needs are growing, the 5ft x 13ft Apex Shed is the solution you didn’t know you needed — until now. Designed with a narrow footprint yet impressive internal volume, this structure blends strength, versatility, and refined craftsmanship into one sleek flat-pack garden building.
Made with fully pressure-treated Scandinavian redwood, this shed isn’t just built for today — it’s engineered for years of dependable use. Whether storing tools, garden furniture, bikes, or even creating a compact workshop, it delivers exceptional durability with an attractive finish.
Unmatched Craftsmanship for the British Climate
Crafted to handle rain, wind, and moisture year-round, the 5ft x 13ft Apex Shed boasts robust tongue and groove cladding that locks out the elements. Its high apex roofline allows more internal height for tall items and improves ventilation, essential for keeping your belongings safe and dry.
You’ll also benefit from strategically placed windows that permit natural light to flood in — perfect for daytime use without relying on electricity.
Premium Materials, Professional-Grade Construction
This isn’t your average shed. While many competitors rely on chipboard or OSB, Flat Pack Sheds uses only premium-grade timber and galvanised fixings. Every panel, joint, and fitting is precision-cut and pre-treated to maximise lifespan and reduce maintenance.
Key features include:
- 12mm pressure-treated Swedish redwood shiplap cladding for long-term resistance to rot and fungi
- 38mm x 50mm heavy-duty framing across floor, roof, and walls for added strength
- 18mm pressure-treated floorboards with integral bearers for ground clearance
- 12mm tongue & groove roof panels, finished with 40kg mineral felt (nail-tacked, not stapled)
- 4mm horticultural glass glazing for clearer, more durable windows
- Galvanised Brenton pad bolts and hinges included as standard
- Double-nailed cladding with stainless steel fastenings
- All panels screwed, not stapled, during manufacture for extra rigidity
Simple Assembly with a Custom Touch
The 5ft x 13ft Apex Shed arrives flat-packed with all fittings, felt, fixings, and clear instructions, making it suitable for confident DIYers or quick professional installation. At Flat Pack Sheds, we also offer bespoke upgrades. Fancy a different door placement? Prefer diamond-leaded windows? No problem — your shed, your way.
Why Choose This Size?
With a 5ft width and a generous 13ft length, this apex shed is perfect for:
- Long and narrow gardens
- Side return installations
- Homeowners wanting a clear separation between storage and workspace
And if you’re looking for just a bit more storage room, consider the slightly larger 5ft x 14ft Apex Shed or the even more spacious 5ft x 15ft Apex Shed, designed with the same robust construction and quality finish.
Built to Last. Built for You.
Forget flimsy alternatives. With its pressure-treated timber, weatherproof design, and proven build quality, the 5ft x 13ft Apex Shed is a serious investment in your outdoor space. It’s one of the most durable and elegant timber sheds available in the UK — and it’s delivered fast and free across most of the country.
Order today and experience the quality and convenience only Flat Pack Sheds can deliver.
More to Explore
Our potting sheds offer a versatile alternative built to the same exacting standards for those seeking practical workspace combined with planting functionality.




























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