Shuttering / Formwork Area
Contact area, plywood sheets and props for slabs, beams and columns.
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Enter your values, then press Calculate Now to evaluate the output.
Guide — Shuttering / Formwork Area
The shuttering and formwork calculator below follows standard Indian construction practice and the relevant IS-code conventions. Enter the site dimensions exactly as measured, press Calculate Now, then refine the quantities line by line in the live sheet before you export.
Formwork is measured as the contact area with concrete. A slab is measured on the soffit only, a beam on both sides plus the soffit, and a column on all four faces over its clear height.
A standard 8'×4' film-faced plywood sheet covers 2.97 m². Sheets survive 8–12 repetitions with careful de-shuttering and release agent, which is what makes the per-use rate viable.
IS 456 sets minimum striking times: 16–24 hours for vertical faces, 7 days for slab soffits with props left in, and 14–21 days for beam soffits spanning over 6 m. Early striking is the leading cause of slab deflection defects.
Treat every output as an indicative pre-tender estimate. Site conditions, wastage allowances, specification changes and local market rates all move the final figure, so validate against your drawings and approved rate analysis before procurement.
Master Measurement Sheet
| Sr. No. | Description | Unit | NOS 1 | NOS 2 | L | B | D | QTY | Action |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1.000 |
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About the Shuttering / Formwork Area
This tool is built for site engineers, quantity surveyors, contractors and property investors who need dependable numbers fast. Every input is reactive — changing a single field instantly recomputes the full output set, so you can run sensitivity checks on dimensions, grades and rates before committing to an estimate.
Keep unit consistency in mind: metric inputs (metres, square metres, cubic metres) produce metric outputs, with imperial and Indian trade units shown alongside where they are commonly used on site.