The telecommunications rack shall be constructed of extruded aluminum and capable of accepting 19" wide EIA equipment. Rack construction method shall ensure an electrically bonded structure for ease of grounding. The rack shall be UL listed for 1,000 lbs. load rating. The equipment mounting rails shall be double-sided #12-24 EIA universal mounting hole spacing. The equipment mounting rails shall include printed rack space identification on the front and back and be numbered from top to bottom. The channel of the rack shall be capable of mounting NETRUNNER or PATCHRUNNER Vertical Cable Managers. 24 #12-24 mounting screws shall be included with the rack.