To get cat urine out of wood floors, use a product specifically designed to remove the odor of cat urine, available from pet supply stores. Resort to sanding only if a few applications of this product does not work due to the floor's poor finish or gaps between the seams.
- Apply a cat urine odor remover
Go to a pet supply store or call your veterinarian to get recommendations for the best product to get cat urine smells out of a wooden floor. Purchase the product and apply according to the instructions on the packaging. Repeat if the odor remains; if the odor persists after multiple applications, move to Step 2.
- Test the floor for sanding
Pull one of the thresholds up, and look to see if the floor has been sanded previously. Sanding that goes down to the tongue-and-groove means that further sanding is impossible. Apply more cleaner until you get as much of the odor out as possible, or consider replacing that part of the flooring. Move to Step 3 if sanding is possible.
- Sand the floor in the affected room
Rent a sander appropriate to the level of your need; a vibrating floor sander works for light jobs, but a drum sander is better if deeper sanding is necessary. Take out any quarter-round molding, but leave baseboards in place to avoid damage. Begin by sanding with coarser grit sandpaper, moving to finer as you proceed. Sand evenly around the room, leaving an even finish, making sure never to leave a sander sitting still while the motor is on.
- Clean and finish the floor
Sweep the floor clean with a broom, and then clean with a damp mop. Mop once again after the floor has dried to collect all debris. Use a water-based urethane finish on the floor, following the directions for application on the packaging.