Use a circular saw to make your cuts.
How to fix floor under kitchen sink.
In from all four edges.
Always use a blade guide for safety when cutting with this type of saw.
Remove the drain lines and garbage disposer if there is one to get maneuvering room.
Plywood to the interior size of the sink base.
Next cut a piece of 1 2 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.
Measure the size of the area under the sink.
Cut a new piece of plywood to fit.
Then trace a cutting line about 3 in.
Feed the plywood through slowly and keep your fingers away from the blade course.
Remove all contents from the sink.