- Best budget species: Nordic spruce feather edge — £20–£30 per m², treat every 2–3 years, lasts 15–25 years.
- Best low-maintenance: Siberian larch shiplap or shadow gap — £35–£55 per m², no treatment needed, lasts 20–35 years.
- Best premium: ThermoWood — £55–£80 per m², zero maintenance, 25–40 years.
- Most important steps: Pre-treat all boards before fixing, install breather membrane, use A4 stainless fixings, maintain 150mm ground clearance, seal all cut ends.
- Planning permission: Not required for re-cladding or cladding an existing shed in most cases.
- DIY or professional: Fully achievable as a DIY project with basic carpentry skills — allow 1–2 days for a standard shed.
Cladding a garden shed is one of the most satisfying and cost-effective DIY improvements you can make to a garden. Whether you are replacing rotted panels on an existing shed, upgrading a plain timber structure, or starting from scratch on a new build, the right cladding will protect the shed frame for decades, dramatically improve its appearance, and — if you choose the right species — require virtually no maintenance throughout its service life. This guide covers the species and profiles that work best for garden sheds in the UK, gives you the step-by-step installation process in plain language, and tells you honestly what each option will cost and how long it will last.
Which Timber Cladding Is Best for a Garden Shed?
Garden sheds have different requirements from house extensions or garden rooms. They tend to be smaller, lower, more exposed to splash-back from the ground, and in more budget-sensitive contexts. The most important practical differences from other cladding applications are: the shed frame is often less substantial than a house wall; maintenance access is usually easy; and the budget expectation is typically lower. Here is how the main species compare for shed use:
| Species / profile | Cost per m² | Lifespan | Maintenance | Best for |
|---|---|---|---|---|
| Spruce feather edge | £20–£30 | 15–25 yrs | Treat every 2–3 yrs | Budget sheds, agricultural buildings |
| Spruce shiplap | £22–£35 | 15–25 yrs | Treat every 2–3 yrs | Budget sheds, clean horizontal finish |
| Siberian larch shiplap | £35–£55 | 20–35 yrs | None required | Mid-range sheds, garden offices |
| Siberian larch shadow gap | £45–£65 | 20–35 yrs | None required | Premium sheds, contemporary garden rooms |
| ThermoWood shiplap | £55–£80 | 25–40 yrs | Zero — ever | Premium sheds, garden studios, zero maintenance |
| Charred timber | £75–£110 | 25–40 yrs | Zero — ever | Statement sheds, bold black exterior |
Siberian larch shiplap is the best all-round choice for garden sheds — naturally durable without treatment, 20–35 year service life, clean horizontal profile, and around £35–£55 per m². For a standard 10m² shed that is approximately £350–£550 in board materials — not a significant uplift from spruce, but with no treatment obligation over the life of the shed. For a purely budget build where treatment will genuinely be maintained, spruce feather edge at £20–£30 per m² is perfectly viable.
What You Need — Materials and Tools
Materials
- Cladding boards — your chosen species and profile (see table above)
- Breather membrane — 1.5m roll, vapour-open, water-resistant. Allow 10–15% extra for overlaps
- Counter battens — 25x38mm treated softwood. One batten per stud, full height of shed wall
- A4 stainless steel ring-shank nails or screws — 50mm for feather edge and shiplap into 25mm batten; 65mm for heavier profiles. Never galvanised — will rust within 2–3 years. We stock A4 stainless cladding screws
- Exterior wood preservative or oil — for pre-treating boards before installation. For spruce: Remmers HK Stain. For larch or ThermoWood: Koopmans Houtolie
- End grain sealer — apply to all cut ends on site immediately after sawing
- Corner trim or corner posts — to finish external corners neatly
Tools
- Circular saw or mitre saw for crosscutting boards
- Nail gun (recommended) or hammer — drill for pilot holes within 25mm of board ends
- Staple gun for membrane
- Spirit level — check every few courses
- Tape measure, pencil, chalk line
- Paintbrush or roller for pre-treatment application
How Much Cladding Do You Need?
To calculate the quantity of cladding boards required for your shed, measure the total area of all four walls (height x width for each elevation, added together), then subtract any window and door openings. Add 10% for waste and cutting. For feather edge — where boards overlap — add a further 10% to account for the overlap coverage reduction.
| Shed size | Approx wall area | Spruce (budget) | Larch (mid) | ThermoWood (premium) |
|---|---|---|---|---|
| 6x4ft (1.8x1.2m) | ~8m² | £160–£240 | £280–£440 | £440–£640 |
| 8x6ft (2.4x1.8m) | ~14m² | £280–£420 | £490–£770 | £770–£1,120 |
| 10x8ft (3.0x2.4m) | ~21m² | £420–£630 | £735–£1,155 | £1,155–£1,680 |
| 12x10ft (3.6x3.0m) | ~29m² | £580–£870 | £1,015–£1,595 | £1,595–£2,320 |
All figures are materials only — boards, membrane, battens, and fixings typically add £8–£12 per m² to the board cost. Contact our team with your shed dimensions for a precise quantity and quote.
How to Clad a Garden Shed — Step by Step
Inspect the shed frame for rot, damage, and squareness. Press a screwdriver into any suspect areas — if it sinks in easily, the timber is rotted and must be replaced before cladding over it. The frame needs to be minimum 38mm deep to accept fixings through the batten and into the stud without splitting. Treat any bare end grain with preservative.
Before fixing a single board, apply preservative, oil, or stain to all four faces and both ends of every board. Once boards are installed, the back face becomes inaccessible — untreated back faces in contact with moist air are the most common cause of premature cladding failure. Lay boards out on trestles, coat all faces, and allow to dry before installation. This step is essential for spruce and recommended for all species.
Staple breather membrane to the external face of the frame — starting at the bottom and working upward, with each course overlapping the one below by minimum 150mm. Tape all horizontal joints with breather membrane tape. At corners, lap the membrane around and fix to the return face. The membrane keeps wind-driven rain off the frame while allowing moisture vapour to escape outward.
Fix 25x38mm treated softwood counter battens vertically over the membrane, positioned over each frame stud behind. Fix using 65mm ring-shank nails or screws at 400mm vertical centres, driven through the membrane and batten into the frame stud. These battens create the minimum 25mm ventilated cavity behind the cladding that allows any moisture to drain and dry — this is what makes the difference between cladding that lasts 20 years and cladding that fails in 5.
Before fixing the first board, confirm the bottom board will sit at least 150mm above the finished ground level. This prevents persistent splash-back wetting the bottom of the boards — the most common cause of early failure in shed cladding. Check the first board for level before fixing — if the ground is not level, shim accordingly. For feather edge, fix a thin starter strip at the base first to kick out the bottom board at the correct angle.
Fix each board using A4 stainless steel ring-shank nails or screws — two fixings per batten per board. Pre-drill pilot holes within 25mm of board ends to prevent splitting. For feather edge — overlap each board by minimum 25mm over the one below, checking level every 3–4 courses. For shiplap and shadow gap — follow the rebate or groove. Check for level regularly — a chalk line helps keep long runs straight.
At external corners, use a square corner post (38x38mm or 50x50mm timber) or mitre the boards at 45°. The corner post approach is simpler and provides a clean shadow line. At window and door openings, fit a head flashing or drip profile above the opening to shed water away from the frame. Seal all cut ends immediately with end grain preservative — this is particularly important at corner cuts and around openings.
Once all boards are fixed, apply a final coat of preservative or oil to all exposed surfaces — paying particular attention to any boards that were cut on site (seal the cut ends again), and to any areas where the pre-treatment has been disturbed by fixing. For spruce, this final coat is part of the treatment that determines service life. For naturally durable species, it is optional but recommended for colour retention.
1 — Cladding too close to the ground: Boards within 150mm of ground level rot first, every time. 2 — Galvanised fixings: They rust within 2–3 years, staining the boards and creating moisture entry points. Always use A4 stainless. 3 — Skipping pre-treatment: Back faces that are never treated fail from the inside out — by the time you see the problem on the face, the back of the board is already gone.
Planning Permission — Do You Need It?
In most cases, re-cladding an existing garden shed or installing new cladding on a shed does not require planning permission. It falls within permitted development rights as a minor alteration to an outbuilding. If the shed itself was lawfully constructed, changing its external cladding material does not normally require approval. If the shed is in a conservation area, listed building curtilage, or a national park, different rules may apply — confirm with your local planning authority before starting work. Building regulations approval is not required for garden shed cladding. For full guidance see our planning permission for timber cladding guide.
What is the best timber cladding for a garden shed in the UK?
For a budget shed: Nordic spruce feather edge at £20–£30 per m² — treat every 2–3 years, lasts 15–25 years. For a low-maintenance shed: Siberian larch shiplap at £35–£55 per m² — no treatment needed, lasts 20–35 years. For a premium shed or garden office: ThermoWood shiplap at £55–£80 per m² — zero maintenance, lasts 25–40 years.
What is the cheapest cladding for a garden shed?
Nordic spruce feather edge board at £20–£30 per m² is the cheapest quality timber cladding for a garden shed. For a standard 8x6ft shed requiring approximately 14m², total board cost is approximately £280–£420. Add £8–£12 per m² for membrane, battens, and fixings. Treatment products add approximately £30–£50 for the initial application.
Do I need planning permission to clad a garden shed?
In most cases, no — re-cladding or cladding an existing garden shed falls within permitted development rights and does not require planning permission. In conservation areas the rules may differ. Building regulations approval is not required for garden shed cladding. Confirm with your local planning authority if in any doubt.
Can I clad a shed myself?
Yes — shed cladding is a manageable DIY project with basic carpentry skills. The most important steps are pre-treating all boards before fixing, installing a breather membrane, using A4 stainless steel fixings, maintaining 150mm ground clearance, and sealing all cut ends. Feather edge is the easiest profile for beginners. Allow 1–2 full days for a standard garden shed.
How long does shed cladding last in the UK?
Treated Nordic spruce lasts 15–25 years. Siberian larch lasts 20–35 years without treatment. ThermoWood lasts 25–40 years. Standard cheap pine shed panels from DIY sheds typically last 5–10 years. Investing in a better species almost always saves money over the 20–30 year ownership period.
Garden Shed Cladding — All Profiles from UK Stock
We supply feather edge, shiplap, shadow gap and loglap in Nordic spruce, Siberian larch, ThermoWood, and charred timber from UK stock. Tell us your shed dimensions and we'll calculate the precise quantity needed — including membrane, battens, fixings, and treatment products. Nationwide delivery in 7–14 days.