Shuttering Area Calculator – Formwork Area & Plywood Estimate
Use the shuttering area calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Introduction
Calculate preliminary contact area of formwork for common concrete members and estimate plywood or sheet requirements.
What Is Shuttering Area?
Shuttering or formwork area represents the surface area of formwork in contact with fresh concrete. It is commonly used to estimate panels, plywood, supports and formwork labour.
Column Formwork
For a rectangular column, contact area is approximately perimeter × height, subject to the faces actually shuttered.
Beam and Slab Formwork
Beam formwork can include soffit and side faces depending on the construction arrangement. Slab formwork generally relates to the underside contact area, with edge forms handled separately.
Plywood Count
Sheet quantity depends on sheet dimensions, layout, reuse, cutting and wastage. A simple area division is only a preliminary procurement estimate.
FAQs
Q: Does the calculator include staging? A: Formwork contact area and temporary support/staging are separate quantities.
Q: Does reuse change plywood quantity? A: Yes. Reuse planning can significantly reduce new sheet requirements.
Disclaimer
Final formwork quantities and temporary works must be checked against the construction method, member geometry and site safety requirements.