SpecMeasureProduct quantity calculator

Tile fixing calculator

Tile adhesive calculator

Estimate how many bags of tile adhesive you need from the installation area, trowel notch, finished bed depth, back-buttering and wastage allowance.

Adhesive

Setaflex Standard Grey

Standard setting S1 mineral adhesive with extended working time.

Setaflex Standard Grey 20 kg bag
✓ Data checked 18 Aug 2026
Adhesive details
Estimated finished adhesive bed3.6 mm12 mm notch × 60% at 60° ÷ 2 after bedding the tile.
Calculation basis1.2 kg/m²/mm finished bed

Quantity result

18bags

Includes 10% wastage

Calculated
315.4 kg
With wastage
346.9 kg
Pack size
20 kg
12 mm notch → 3.6 mm estimated finished bed

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.

  • Enter the tiled area in square metres.
  • Choose the trowel notch or finished adhesive bed depth.
  • Allow for back-buttering where required.
  • Set a realistic wastage allowance for the project.

Plan more accurately

What affects the estimate?

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

  • Tile format, weight and surface profile.
  • Substrate flatness and porosity.
  • Trowel angle, transfer and coverage requirements.
  • Site conditions and installer technique.