If only the area directly below the flange is rotted you can install a two piece steel closet flange support.
Replacing bathroom floor rotted.
If you discover minor rot around the toilet flange install a closet flange support under the flange to transfer the weight of the toilet to solid wood.
Learn from ashlee cody as they diagnose their moisture issues fix thei.
If they are wet leave them exposed for 2 or 3 days so they can dry out.
Labor costs will be around 27 50 per hour.
This is a good time to check on the insulation in the floor as well as the plumbing and any exposed wiring.
Measure and cut plywood as needed to cover the damaged area.
Once he knew where the damage was doug removed the vinyl floor covering and all the rotted wood.
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.
Chad completed the subfloor repair by nailing it off and sealing the gaps at the pipe.
Using a cat s paw.
Repairing a damaged subfloor is serious business but it doesn t have to be scary.
Wrapping up the subfloor in the adjacent bathroom required an interesting puzzle piece to bridge the floor joists to match the diagonal shiplap of the existing subfloor and to accommodate a toilet drain.
The project requires the removal of the finished flooring and damaged area and the installation of a new material.
Remove the areas that are badly damaged.
Vacuum and pick up all the debris that has fallen between the rafters.
It s not difficult to replace the floor however just messy.
Remove baseboard trim to prevent damaging it.
Pry up and remove trim in front of the tub if applicable with a pry bar or screwdriver.
Measure and cut the plywood use 5 8 cdx plywood to replace the original subflooring.
Although you will probably find more damage if your floor was rotted we will assume that only the floor has to be replaced.