Diy Weight Holder . How to make an inexpensive set of standard (1) weight plate holders for your power rack that has 2 square tubing and 1 diameter safety pin holes. I cut the sheet of 3x4 inch plywood. Weight plate box on casters Diy home gym, At home gym, Best home gym from www.pinterest.com How to make an inexpensive set of standard (1) weight plate holders for your power rack that has 2 square tubing and 1 diameter safety pin holes. The only thing you have to realize after you drop the gym membership and start working out in your garage is that you are now your own janitor and all of your stuff (weights,. Is your workout area cluttered with your weights, are you lacking a weight rack to hold all of your weights to keep things organized, i know i was.