Screed Floor Tolerances – How Flat Does The Floor Need To Be?

Surface Regularity

Max Deviation from a 2m straight edge in contact with the floor
Application

SR1

+/-3mm
High standard: for commercial and industrial buildings

SR2
+/-5mm
Normal standard: for commercial and industrial buildings

SR3
+/- 10mm
Standard: for other floors, where regularity is less critical.

Surface Regularity

Max Deviation from a 2m straight edge in contact with the floor
Application

SR1

+/- 3mm
Normally required for vinyl’s and some tiles with thin bedding grouts.

SR2
+/- 5mm
Acceptable for most tiles, carpets and wood floors

SR3
+/- 10mm
Acceptable where a deep bed will be applied to the surface such as tiles with 15mm grout bedding.

Always Check With Your Floor Finishing Contractor What Surface Regularity Your Floor Finishes Will Require.

This Post Has One Comment

  1. Frank clifford

    what is the tolerances in a wet area

Leave a Reply