Flooring – How to remove superficial pet urine stains from subfloor

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After removing the carpet from our bathroom closet, I found urine stains on the plywood sub-floor (serenity now).

It sounds bad but the floors are quite sturdy so I'm reasonably certain that it's a superficial stain. What would be the recommended way of cleaning it (short of removing/replacing the sub-floor).

I'm planning to eventually place carpeting back in the closet so I'm not concerned with leaving a mark. Just want to make sure it's sanitary and odor-free.

-M

Best Answer

I use Zep pet spotter, but it's intended for carpets, not wood. I think mop it with a dilute solution of chlorine bleach to sanitize the area, then seal it with a primer / sealer to prevent any residual odors from escaping.