The "T" bar is made of 1" steel tubing from lowes. I bought 2 six foot pieces. The hooks are made from all thread, a 4 foot piece. After building the "T" bar I mocked up the hook locations using a coat hanger to get the correct bend. Then cut the all thread to that length and with a table grinder took off the threads on the all thread that made up the hook portion. Once assembled I put the roof on the ground under the lift and with a small strap I hooked the winch hook to it and lifted it up a few inches. I just kept on moving the strap until it lifted level. Once level, I marked that spot and installed an "I" bolt.