Well, I kind of improvised...expect to get some scratches...the stuff comes in 6" wide rolls, so you have to cut it between 35" and 36" long..I started at the lock side and ran two pieces vertically..The next piece will run into a square sheet metal box, I couldn't get it to go behind it, so I cut a piece to go up from the bottom and a piece to go down from the top..From there, I ran a piece horizontally across the bottom so I only had to deal with shorter pieces going vertically from there to the front..It's really hard to get to up there, but if you take your time and not get too frustrated, it'll go in..Note: Expect to get your arm stuck in the bottom hole more than once..It is worth it though! Steve