How do you get the smell of dog urine out of particle board floors?

Nothing that I can think of. The particle board is porus and has absorbed the urine. Your best bet is to replace it. Particle board is super cheap.

Replace the flooring, sorry no other way.

I would use 5/8 inch plywood.

Odetta, , I have no experience with particle board floors but every time my dog has an accident in the garage, right away I spray the spot with Water/vinegar/tree tea oil/dawn, mixed in a bottle...then I hose the floor or mop off...no smell there!!

thanks everyone it is a house I was going to buy ,that is what i thought would have to be done ,guess I'll pass on the house

Hi Odetta, so sorry to hear that. It's a common problem. Mix ¼ cup of baking soda with 1 cup water, 1/3 cup distilled white vinegar, and about 1/4 cup of mild dish soap. Put the solution in a spray bottle a mix thoroughly before spraying it on the stain. Rub it in lightly with a clean cloth and let it stand for about 20 minutes. Rinse the solution away with a damp cloth and let it dry thoroughly. Be sure to test the mixture first on a spot to make sure it won’t discolor or damage your floors.

Particle board will soak up the urine because it is porous, you will have to replace.

Hi Odetta: I use a product called Odormute, and you can get it online at Chewy and I think Walmart sells it, too. Https://Odormute.com It's an enzyme eater, which you need to get rid of the urine smell. It is non-toxic and you can even use it on your pet and clothes. I have used it for years with wonderful results.

The ammonia in urine can only be neutralized by vinegar, so I would apply some white vinegar to the affected area and let it dry naturally.

Replace it!

Hi Odetta, hope this helps you. Mix A 2-to-1 mixture of warm water and white vinegar, and 1 drop of Dawn dishwashing liquid.

Spray this over the affected area, or spread it with a brush, and let it soak in. Blot dry after a few minutes.

A 3 percent hydrogen peroxide solution, Spray it on, let it sit for a few minutes and blot dry.

Peroxide, dish soap and baking soda. Mix about 14 ounces of 3-percent peroxide with a dash of dish soap and add about 1/2 teaspoon of baking soda. Spray on and blot dry after a few minutes.

Partical board soaks up everything. Is the flooring sealed? If not you can try Natures Miracle for dogs. Or Warm white vinegar, Dawn and water spray. But I think it best to replace.