Shed, Roofing and Cladding Calculators
Calculators for sheds and outbuildings: the base, the roof felt and the cladding.
Shed Base Calculator
Work out concrete, MOT Type 1 sub-base, DPM, paving slabs or a timber bearer frame for any shed size, with a visual base diagram.
Use calculator →Shed Roof Felt Calculator
Lays out every strip with the overhangs, laps and ridge strip, packs them onto 8m or 10m rolls, and counts the nails.
Use calculator →Cladding Calculator
Lays shiplap courses round windows and doors with staggered joints, counts battens, and reuses offcuts.
Use calculator →