SpecMeasureProduct quantity calculator

Floor preparation calculator

Floor screed calculator

Estimate bagged screed, smoothing compound and self-levelling product quantities from the measured floor area, application depth and wastage allowance.

Levelling

ProFlow Smooth

Two-part smoothing compound for resilient flooring preparation.

Proflow Smooth 20 kg bag and liquid component
✓ Data checked 17 Aug 2026
Levelling details
Calculation basis1.481 kg/m²/mm

Quantity result

72bags

Includes 10% wastage

Calculated
1,297.4 kg
With wastage
1,427.1 kg
Pack size
20 kg
1.481 kg/m²/mm

Estimate only. Confirm suitability and current guidance in the manufacturer's technical data sheet.

How it works

How to use this calculator

Choose the product you intend to use, enter the measured project information and review the estimated pack quantity. SpecMeasure applies the selected product's coverage information and your chosen wastage allowance.

  • Measure the floor area in square metres.
  • Enter the average application depth in millimetres.
  • Select the actual bagged floor-preparation product.
  • Add wastage for unevenness, mixing and handling.

Plan more accurately

What affects the estimate?

Real-world consumption varies with the substrate, application method and installation conditions. Check these factors before ordering:

  • The true average depth across the floor.
  • Low spots, falls and changes in level.
  • The selected product's stated consumption rate.
  • Substrate preparation and site conditions.