Welded construction with 1-5/16 in. OD tubular dividers on a base of square tubing and angle iron that includes lag down holes and keeps stored materials up off the floor. Storage bays (4 total) are 7 in. wide with 1,500 lbs. capacity each. Upright dividers are 27 in., 36 in., and 42 in. high. Frame and uprights are all welded and coated in a durable gray powder coat for long lasting performance.