Sub floor installation Melbourne

Identifying your sub-floor

Your sub-floor is the floor beneath your floor or carpet. It is the structure over which your new flooring will be installed. If you already have a floor or carpet installed and you’re not sure what the sub-floor is, you will need to lift the existing carpet or floor to check.

The sub-floor can be the concrete basis of your home, or the wood board or plywood fixed to the floor joists. The decision on which type of floor you can install, the accessories you need and the method of installation to use depends on your sub-floor.

Sub-floor Conditions

You will need a spotless, flat and dry sub-floor. ‘Flat’ means no more than 3mm variation up or down over a 3-meter span. Guarantee the sub-floor is free of protruding debris or imperfections, failure to do this could lead to damage to your floor in the short or long term.

Sub-floor Levelling

If you find you have an uneven floor, you can use screed levelling compounds on hard surfaces like concrete or plywood – these can be found at most builders’ merchants. You could also use our 5.5mm fibre boards as an underlay to cover a rough surface.

Temperature and humidity readings of environment

Taking a temperature and humidity reading of the internal environment is a recommended step before acclimatising your floor. Keep these readings safe. If future problems do arise, then you will have a good benchmark which you can use to access the best method to deal with the issue.

Moisture testing and control

Guaranteeing that your new floor is properly acclimatised to the moisture conditions of the sub-floor and your home, office or shop is a vital part of a successful flooring installation. Concrete sub-floors will need a damp-proof membrane (DPM) to confirm they do not transmit additional moisture to your new floor once installed, this is due to their increased contact to the ground compared to wooden sub-floors.