Disconnecting the drainpipes allows easier access when repairing the sink cabinet s floor by providing a workspace without the added constrictions of the pipes.
How to fix floor under kitchen sink.
Cut a new piece of plywood to fit.
Measure the size of the area under the sink.
Plywood to the interior size of the sink base.
Then trace a cutting line about 3 in.
Next cut a piece of 1 2 in.
Then cut out the middle section of the swollen sink base with a jigsaw.
Remove the old swollen floor.
Cut a sheet of plywood to fit this area.
Remove the drain lines and garbage disposer if there is one to get maneuvering room.
Remove all contents from the sink.
Feed the plywood through slowly and keep your fingers away from the blade course.