Construction & estimating · Roofing & framing

Roof sheeting & battens calculator

Gable roof area from plan and pitch, sheet count and length, battens, screws and cost.

Standard: Pitch factor 1/cosθ · cover width · batten rows

Inputs in the worked example

The live calculator starts with these values; change any of them and every result, check and diagram updates instantly.

Diagram for the worked example

Rafter length = (W/2 + overhang)/cosθ
Sheets per side = ceil((L + 2·overhang)/cover)
Batten rows = ceil(rafter/spacing) + 1 per side
Rates are example inputs only. Replace them with current supplier quotes and local labour rates.

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For preliminary design and education. Check every result against the current standard and your own engineering judgement before use.