Remove the old swollen floor.
How to fix floor under kitchen sink.
Plywood to the interior size of the sink base.
Feed the plywood through slowly and keep your fingers away from the blade course.
Cut a new piece of plywood to fit.
In from all four edges.
Disconnecting the drainpipes allows easier access when repairing the sink cabinet s floor by providing a workspace without the added constrictions of the pipes.
Remove all contents from the sink.
Cut a sheet of plywood to fit this area.
Use a circular saw to make your cuts.
Always use a blade guide for safety when cutting with this type of saw.
Then trace a cutting line about 3 in.
Then cut out the middle section of the swollen sink base with a jigsaw.