We bought 6 of these to roof large timber outhouse with an existing fairly light (not the heaviest weight bearing) timber structure. The panels were fairly easy to cut a little shorter (with care) with a simple pvc saw. It would have been nice if all of the sheets had one rounded edge to slot into the adjacent concave sheet but understand this is the way they have to be cut and that that would have been more expensive and as the panels still had a slight lip to overlap slightly this was not an issue, however we still used roofing tape to seal the joins. The finished roof is very attractive the area beneath now very bright and leak proof. The delivery chap was very helpful in helping by calling us with his eta and by helping is to bring them in. Thank you. KH