Measure and cut plywood as needed to cover the damaged area.
Replacing chipboard flooring bathroom.
If the water damage has been occurring for a while and there are signs of flaking wood or mold the only option may be to replace the affected section of subflooring.
Replacing subfloors will cost between 1 45 and 7 per square foot for materials.
Whilst you re there consider beefing up the floor structure if necessary to minimise movement the deadly enemy of floor tiles by inserting noggins between the joists.
Measure and cut the plywood use 5 8 cdx plywood to replace the original subflooring.
The project requires the removal of the finished flooring and damaged area and the installation of a new material.
This exterior grade plywood is a good choice for damp or occasionally wet areas because it can withstand a moderate amount of moisture without deteriorating.
Labor costs will be around 27 50 per hour.
Daz the chipboard s got to come up and be replaced with exterior grade ply wbp at least 18mm thick thicker if you can 22 or 25 depending on levels etc.
A step by step video of how to repair the floor under your toilet replace it put new flooring and set the toilet etc.
Sand the compound with a belt.