I own a warehouse and lease out part of it. The lessee kept driving their forklift through my building walls. I purchased 25 of these racks guards and placed them at 3 foot intervals around the wall of my warehouse. They are super! They are much heavier duty than some I purchased years ago. We used 5/8" redhead to bolt them in place. So far, they have easily withstood the forklift traffic without so much as a dent! I heartily recommend these!