Remove the drain lines and garbage disposer if there is one to get maneuvering room.
How to fix floor under kitchen sink.
Remove the old swollen floor.
Then cut out the middle section of the swollen sink base with a jigsaw.
Use a circular saw to make your cuts.
Next cut a piece of 1 2 in.
Plywood to the interior size of the sink base.
Then trace a cutting line about 3 in.
Disconnecting the drainpipes allows easier access when repairing the sink cabinet s floor by providing a workspace without the added constrictions of the pipes.
Always use a blade guide for safety when cutting with this type of saw.
In from all four edges.
Remove all contents from the sink.
Measure the size of the area under the sink.