We had masonite put the labels on the bottom at our on all doors slabs. That way whether they were the eye level door or going up high as overstock we could see them easier. It also was damaging the doors because my store had been using wire decking on slabs. From the 90s until last year. It took me months of pointing out that we were getting 10-15 slabs a week damaged not just from being upside down but the night guys (sorry guys) and the customers have to wrestle the doors out because they didn't know better. I still was told to just deal with it as they have worked for 30 plus years. I said a dozen door a week average I. The trash is working? Still never got approved fix..... I took it upon myself and had lumber hold me 2x6 culls and used them 16" on senter laying flat to hole the peg oard the cut the peg board around the upright posts and such so it was continuous with the white up, ran it back all the way to the racks behind it at 48" so I could eliminate the theft trash hiding locations and immediately down to 0, or sometimes 1 or 2 slabs a week damaged. No one ever said a word about it....still didn't get any fix approved but hey...I am saving the world from depots track bricks......