A consistent approach to finishes


Floors shall be built to appropriate tolerances.

Floors should be:

  • level within a 3mm deviation per 1m for floors up to 6m across (measured at the furthest points across the full width of the floor)
  • a maximum of 20mm out of level for floors over 6m across
  • flat within a ±5mm deviation, measured using a 2m straight edge with equal offsets.

Underfloor service ducts should be constructed so that the cover is level with the adjacent floor finish. The selection of floor finish should take into account that drying shrinkage of the floor may result in minor differences in level between the floor and duct cover, which may become evident with some types of thin floor coverings.