Expand your TITAN Series Bolt-Down Power Rack to a 6-upright cage with the 24" Depth Rack Extension Kit — ideal for adding plate storage and customizing the rack to your programming. Bolt-together 3" x 3" 11-gauge steel uprights feature laser-cut keyholes spaced 2" on-center, matching the rest of the TITAN Series system for a clean, expandable build on a busy floor.