ClarityHow to use this tool
- Enter wall area, door and window area, exposed coverage per panel, waste allowance.
- Select Calculate to view the result.
- Check the method and assumptions below before using the result.
The method, explained
Net cladding area = gross−openings. Panels = ceiling(net area × allowance / exposed panel coverage).
Using wall area = 80 m², door and window area = 12 m², exposed coverage per panel = 0.8 m², waste allowance = 10 %, the result is 94 panels. Change these example inputs to match your task; use the method above to check each step.
Understanding your result
Enter exposed coverage after overlap. Trims, corners and starter strips are not counted.
What to keep in mind
Enter exposed coverage after overlap. Trims, corners and starter strips are not counted. A material-quantity estimate, not a structural design or building-code check. Confirm site measurements, supplier coverage and waste before ordering.
Common questions
How do I use this siding panel calculator?
Estimate siding panels from net wall area and the exposed coverage of each panel. Enter wall area in m², door and window area in m², exposed coverage per panel in m², waste allowance in %. The starting example is editable; use values for the same system or project.
Which assumptions affect this result?
Enter exposed coverage after overlap. Trims, corners and starter strips are not counted.
Methodology maintained by ClarityKit. How these tools are built and checked.