Bad Cabinet Floor Under Sink

Here s a way to prevent that.

Bad cabinet floor under sink.

How to replace the bottom piece of wood under my kitchen sink. 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. Moisture destroys the particleboard most cabinets use for the floor below a kitchen sink. In from all four edges.

Remove the old swollen floor. Theoretically the inside of your kitchen sink cabinet shouldn t get wet but in the real world that s just not the case. 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 space beneath the kitchen sink is exposed to high levels of humidity and may even be exposed to water through leaky plumbing.

Next cut a piece of 1 2 in. Then trace a cutting line about 3 in. Water leaks are a common occurrence under kitchen sinks. Damp rotten particleboard holds water.

Plywood to the interior size of the sink base. Both the cabinet floor and the supports underneath needed to be restored to prevent further damage or mold issues. The floor of the sink base cabinet was warped rotted and cracked and in bad need of repair. Then cut out the middle section of the swollen sink base with a jigsaw.

Remove the drain lines and garbage disposer if there is one to get maneuvering room.