We have installed these in our business’ show room. We run a roofing company and needed something very sturdy to display shingle samples on. We ordered the aluminum slat wall along with these hooks and they have done the trick. The wall is more than sturdy enough to support hundreds of pounds of shingles and these hooks were the perfect size to fit in the handle of the sample boards and support 2-4 boards on one hook. Very pleased with our purchase!