Can i use this to get dog urine out of my old wooding floors so i can get new carpet layed

NO. You need Consan triple action 20. 3 tablespoons in a gallon of water, allow to soak into the wood for 15 minutes. Mopup excess and allow to air dry. You could also try sanding the floots to remove the affected layer of wood, then treating with linseed oil and turpentine to recondition the wood and kill the smell.