Acceptable Subfloors


Floors can be installed over a variety of sub floors, please refer to the relevant sections for minimum sub floor specifications:

  • Joists
  • Solid boards
  • Tiles
  • Concrete screed
  • Panel product subfloors
  • Mixed subfloors

Subfloor flatness and integrity

Subfloors must be flat to within 3mm in 2m radius, clean, dry, structurally sound, free of squeaks and free of protruding fasteners.

If peaks or valleys in the subfloor exceed the tolerances specified above, level with approved material for use under wood flooring. However, it is the builder’s or general contractor’s responsibility to provide the wood-flooring contractor with a subfloor that is within the tolerances listed above.

Inspect the subfloor carefully. If there is movement or squeaks in the subfloor, refasten the subfloor to the joists in problem areas.

Protruding fasteners are easily remedied by driving those fasteners deeper into the subfloor.