materials
Floor Screed Calculator
Estimate screed volume and ordering allowance for a floor.
Adjusted volume
1.037 m³
Base volume
0.96 m³
Allowance
0.077 m³
How this works
Screed volume = floor area × average thickness × allowance.
Worked example
A 24 m² floor with 40 mm screed needs 0.96 m³ before wastage.
FAQ
What is the Floor Screed Calculator used for?
Estimate screed volume and ordering allowance for a floor. It is intended for quick planning, checking, and everyday decisions.
Can I use the result for a final contract or design?
Use it as a planning estimate. Use the average thickness when the base is uneven or laid to falls.
How can I improve the accuracy?
Use measured quantities, current supplier or lender rates, the correct units, and compare the result with drawings, invoices, or professional advice where the decision is safety-critical.