Exterior Shell Calculators

How many rolls of breather membrane do I need? Free calculator by wall area — covers standard roll widths with overlap.

Free vinyl siding calculator — enter wall area in square metres for exact panel count. Accounts for doors, windows & 10% waste factor.

How many HardiePlank boards do I need? Free fibre cement cladding calculator — with waste included.

Window flashing tape calculator: Estimate linear metres for all openings. Free tool for self-adhesive flashing tape.

How many soffit panels do I need? Free calculator by perimeter and eaves width — includes J-channel and ventilation.

Free board and batten calculator — get board and batten count by wall area. For vertical exterior cladding.