Fully-welded, 16-gauge steel open frame rack with 14-gauge steel base, reinforced at load-bearing junctions for robust support. The rack has a configurable top opening and ships with two panels that can be used to close the top or replaced with optional 19-inch fan panels for active cooling. The gangable rack features a 23-inch wide footprint and black textured powder epoxy finish. Available with or without a rear door. Optional front door and side panels (order separately).