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.
what is the tolerances in a wet area