Square-Post Open Wire Shelving permits 4-way access, eliminates dirt build-up, improves visibility, air circulation, and sprinkler effectiveness. Hefty, 12-ga. solid steel frames support heavy-duty wire mats. Shelves and 1" square tube posts are zinc plated for bright appearance and then protected against rusting with a lacquer coating. One-piece split collet installs onto post with a twist of the wrist. Posts are notched on 2" centers and dimpled every 6" to make positioning of shelves easy. Assembly is fast, simple, and strong. #8 ga. shelf wires average 50% thicker than other systems, providing greater shelf capacity and strength. Square post design uses 27% more steel than typical round posts. Solid 2-1/8" robotic welds on collars provide more stability than two spot welds used on round post systems. NSF listed.