This bar mounts with 3/8″ x 3″ lag bolts through 2″ x 5″ x 1/4″ flanges on 24″ centers over a door or from a rafter. The bar projects 5 1/4″ from the mounting brackets and , properly mounted, it can support 1200lbs! It offers 3 hand positions from the 46″ x 1 1/4″ knurled grip bar. the parallel grips are set at 20″. The bar is compatible with all TDS Power Racks. Just state your model number when ordering.