Non Slip Polyurethane For Wood Stairs. When it comes to best endurance & durability, it is recommended to add 3 coats of polyurethane. (1) the quality of the craftsmanship & (2) the quality of the polyurethane.

When it comes to best endurance & durability, it is recommended to add 3 coats of polyurethane. (1) the quality of the craftsmanship & (2) the quality of the polyurethane. There are two main points to remember when you are sanding and painting your hardwood floors & stairs: