How To Fix Cabinet Floor Under Sink

Remove the old swollen floor.

How to fix cabinet floor under sink. In from all four edges. If left unrepaired the leaks can cause significant damage to the cabinet floor by promoting wood rot warping and mold or mildew growth. Water leaks are a common occurrence under kitchen sinks. Then trace a cutting line about 3 in.

Moisture destroys the particleboard most cabinets use for the floor below a kitchen sink. Damp rotten particleboard holds water which promotes mold and mildew. If you have a particle board floor underneath your sink that is showing signs of water damage you can tear it out and replace it to prevent the growth of mold. Replacing the bottom piece of wood.

Then cut out the middle section of the swollen sink base with a jigsaw. Next cut a piece of 1 2 in. Plywood to the interior size of the sink base.