The vertical supports for racking systems are all welded steel, roll-formed, and standard green finish (other colors also available). Teardrop frames below are in stock (new) as well as various used sizes. Capacities are 16,700 lbs with vertical beam spacing of 48”, as well as heavy-duty uprights rated for 25,300 lbs. Depths from 24” – 60” and heights from 8 ft – 20 ft commonly stocked.