About this tool
Contact area by element: slab soffit, beam faces and soffit, column, footing and wall faces.
Slab L·W; beam L·W + 2·L·H; column 2·(B+D)·H; footing 2·(L+W)·H; wall 2·L·H.
Formula: A_slab = L·W A_beam = L·W + 2·L·H A_col = 2·(B+D)·H
Example: Exclusions (%) = 0 → Net contact area (m²) = 49.2, Gross area (m²) = 49.2.
Quantity estimate; excludes props, bracing, reuse cycles and stripping time.
Quick steps
- Enter your values — every field shows its unit.
- Press Calculate (or Try an example to see how it works).
- Read the results and copy them if you need them elsewhere.
The calculation runs in your browser. Nothing you type is sent to 1CLIK.
FAQ
How does the Formwork Quantity Calculator work?
Slab L·W; beam L·W + 2·L·H; column 2·(B+D)·H; footing 2·(L+W)·H; wall 2·L·H.
What should I keep in mind?
Quantity estimate; excludes props, bracing, reuse cycles and stripping time.
Is my data sent anywhere?
No. The numbers stay on your device; the page only shows the result.