Fully welded construction, 16-gauge steel 500 lb. weight capacity Backpan features a large laser knock-out panel and accommodates 89-D brackets and electrical boxes when used with optional subplate. Backpan accepts up to 4 subplates. Bottom cable-entry platform supports entire weight of rack on floor Low-friction wearstrip on bottom facilitates easy opening 40 rackspaces (70") 22" OD depth (20" useable) or 28" OD depth (26" useable) Finished in a durable black textured powder coat Includes all features of DWR series wall cabinets optional sub plate allows for the mounting of up to (4) 89-D type brackets, (4) 1900