Roof Batten Calculator
Approximates total batten stock as roof square footage divided by batten spacing in feet. Use manufacturer layout for tile, metal, or counter-batten systems.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
Step 3
How to use this calculator
Enter roof area to deck and on-center batten spacing measured along the slope.
What the math is doing
Linear feet ≈ roof sq ft ÷ (batten spacing in inches ÷ 12).
Frequently asked questions
Counter-battens?
Plan roughly double stock if you install both layers.
Tile modules?
Batten spacing is set by tile length and headlap.
Hips and valleys?
Increase waste for cuts and short pieces.
Wind uplift?
Follow engineered fastening schedules.