Ensuring the correct screed thickness is essential when preparing a floor for tiling. If the screed layer is too thin, the floor may lack strength. If it is too thick, drying times increase.

Traditional screed guidelines

Typical minimum depths include:

  • Bonded screed: 25mm 
  • Unbonded screed: 50mm 
  • Floating screed: 65mm or 75mm for heavier loads 

These thicknesses provide sufficient support for tiled flooring.

Liquid screed guidelines

Liquid screed can often be installed thinner while still achieving good strength.

Typical depths are:

  • Bonded liquid screed: 25–30mm 
  • Floating liquid screed: 40–50mm 

Why thickness matters

Tiles require a firm and stable base. Correct screed depth helps prevent movement, cracking and long term flooring issues.

Why choose Floor Screeding Essex?

Floor Screeding Essex installs reliable screeding systems across Essex with experienced teams.