Plaster & Render Calculator
Enter the surface dimensions, average thickness, and the product yield shown on your packaging to estimate the required volume.
- Base volume
- Volume with allowance
Use the yield stated for your product. This is a material volume estimate and does not provide construction or safety advice.
A QUICK WALKTHROUGH
How to use this tool
- Enter the surface length and width.
- Enter average thickness, product yield, and optional waste percentage.
- Review the base volume and the volume including your allowance.
Yield is your input
Products vary. Read the coverage or yield information for the product and mix you selected, then enter the matching litres per square metre per millimetre value. This tool does not infer a product yield.
A planning estimate
The result is a volume estimate from your dimensions and inputs. Surface profile, application method and actual product performance can change the amount needed; use the product documentation for those decisions.
GOOD TO KNOW
Common questions
What does product yield mean here?
It is the litres of mixed material needed for one square metre at one millimetre of thickness. Enter the value supplied for your product.
Can I enter my own waste allowance?
Yes. Set any non-negative percentage that suits your estimate. The allowance is applied after the base volume.