This Joist Reinforcer was exactly what I needed to strengthen two 2"x10" joists that were weakened by an overzealous plumber. Installation was quick and easy with the provided pilot bit, driver bit, and fasteners. The only suggestion I can make is to mark the drill bit for depth so that the pilot holes don't go all the way through the joist. My first joist looks like swiss cheese from the back side, now. On the second joist I learned my lesson and left the pilot holes about 1/4" from clearing through the joist. It makes for a much cleaner look. Thanks for a great product!