Measurement unit
Application
Feet, Metres, Inches, Centimetres, Millimetres
Plaster Calculator
Build a surface schedule and estimate plaster mix materials.
Open this toolPlaster 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.
Inputs and controls
Plaster thickness
Application · mm
Allowed range: 0.1 to 100
Faces per surface
Application
Allowed range: 1 to 2
Openings per face
Application · sq ft
Allowed range: 0 to 10000000
Sand parts per cement part
Mix and allowance
Allowed range: 0.001 to 100
Dry volume factor
Mix and allowance
Allowed range: 1 to 3
Bag mass
Mix and allowance · kg
Allowed range: 1 to 1000
Cement density
Mix and allowance · kg/m³
Allowed range: 100 to 5000
Ordering allowance
Mix and allowance · %
Allowed range: 0 to 100
Added once to the measured requirement.
Cement bag price
Quotes · PKR / bag
Allowed range: 0 to 1000000000
Optional. Enter your own supplier quote.
Sand price
Quotes · PKR / cft
Allowed range: 0 to 1000000000
Optional. Enter your own supplier quote.
Room
Surface schedule
Length
Surface schedule
Allowed range: 0.001 to 100000
Width
Surface schedule
Allowed range: 0.001 to 100000
Quantity
Surface schedule
Allowed range: 1 to 1000
How to use
- 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 use this tool
A surface schedule helps you see which walls are included and prevents a door deduction from being applied twice.
Before relying on the result
Deduction is applied to one face before multiplying by the number of faces.
Tool limitations
Deduction is applied to one face before multiplying by the number of faces.
Questions
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.
Source page last modified: 2026-10-01T14:08:57+00:00. This profile describes the tool; use its page to run it.
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