The Middle Atlantic RIB-4-WRK-32 4-Bay Steel Riser Base is a 2.5" (63 mm) riser base that can accommodate four WRK series 32" (813mm) deep racks. This riser base allows for field rough-in prior to arrival of racks and enclosures. To facilitate cable management between racks, this riser has laser knockouts on both sides.
With a lifetime warranty, this base is constructed using 11-gauge steel pre-treated with a black powder-coat finish.