Bad Cabinet Floor Under Sink

Plywood to the interior size of the sink base.

Bad cabinet floor under sink. Here s a way to prevent that. There s often a leak either from the trap or the faucet and if water sits on the plywood floor it will eventually rot it out. The floor of the sink base cabinet was warped rotted and cracked and in bad need of repair. Water leaks are a common occurrence under kitchen sinks.

Moisture destroys the particleboard most cabinets use for the floor below a kitchen sink. The space beneath the kitchen sink is exposed to high levels of humidity and may even be exposed to water through leaky plumbing. Remove the drain lines and garbage disposer if there is one to get maneuvering room. 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.

The water damage was extensive enough that it also rotted the framing below and affected the floor underneath the cabinet. How to replace the bottom piece of wood under my kitchen sink. Next cut a piece of 1 2 in. Damp rotten particleboard holds water.

If left unrepaired the leaks can cause significant damage to the cabinet floor by promoting wood rot warping and mold or mildew growth. Then trace a cutting line about 3 in. Remove the old swollen floor. Both the cabinet floor and the supports underneath needed to be restored to prevent further damage or mold issues.

Then cut out the middle section of the swollen sink base with a jigsaw.