Plaster Calculator
Plaster Calculator
Build a surface schedule and estimate plaster mix materials.
Plaster quantity depends on the surface you will coat and the finished thickness. Room floor area is a poor substitute for those measurements.
Build a surface schedule, deduct openings from the correct face and choose the number of faces. Check the mix proportions against the work specification.
How to use Plaster Calculator
- Choose measurement unit. Enter plaster thickness, faces per surface and openings per face.
- Enter sand parts per cement part, dry volume factor, bag mass, cement density and ordering allowance.
- Enter cement bag price and sand price.
- Add the entries in surface schedule as separate rows. Include room, length, width and quantity for each row.
- Select Calculate estimate. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.
Why choose this tool?
A surface schedule helps you see which walls are included and prevents a door deduction from being applied twice.
Before you use the result
Deduction is applied to one face before multiplying by the number of faces.
Questions about Plaster Calculator
Should an opening be deducted for every face?
The tool deducts it from one face before multiplying by the face count. Enter the same measurement basis throughout the surface schedule.
What should I check before using Plaster Calculator?
Check Measurement unit, Plaster thickness, Faces per surface and Openings per face. Use the exact units shown beside the controls and replace any example values with your own inputs.
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