Full material list for a timber shed — floor, framing, cladding, roof sheathing, felt and fixings — from the shed size and roof style.
Enter the shed width, depth and wall height, then pick the roof style — apex (a central ridge, called a “gable” roof in the US) or pent (a single slope, “shed roof” in the US). The tool produces a material list for a timber-framed shed: floor joists and base sheets, wall studs and cladding, plus roof sheathing and covering.
| Part | Spacing / size |
|---|---|
| Wall studs | 16 in / 400 mm on-centre |
| Floor joists | 16 in / 400 mm on-centre |
| Cladding | Featheredge, shiplap or OSB + felt |
| Roof fall (pent) | ≈ 10–15° |
An 8 ft × 6 ft shed with 7 ft walls has roughly 4 walls of studs at 400 mm centres (about 20–24 studs), a joisted floor, and sheet cladding/sheathing to cover ≈ 200 ft² of wall and roof.
Tip: stand the shed on a level base — concrete, paving slabs or pressure-treated bearers — and keep the timber off the ground to prevent rot.
Studs at 400 mm (16 in) centres are standard for sheds and give a strong frame for cladding and lining.
Allow roughly 10% extra on sheet goods and timber for cuts, plus a separate budget for door furniture, felt nails, screws and treatment.
A pent (single-slope) roof uses slightly less material and is simpler to build; an apex roof gives more headroom and better water run-off.
Yes — a level, firm base such as concrete, paving slabs or a timber frame on bearers keeps the shed dry and square. The estimator covers the floor structure.
An apex shed roof is usually 15–30°, while a pent (single-slope) roof needs at least a 10° fall so rainwater runs off.
