20' D X 35 5/8” H Without Rear DoorAn economical standalone rack with solid sides, the ERK series can also be ganged to create partitioned multi-bay installations for thermal management control, future growth or other purposes. Seismic certified to protect your components.Fully welded construction for strengthEnclosure sides include top and bottom ventingConvenient lacing points and slotted rail brackets for cable managementStandard front adjustable 10-32 threaded rackrail with numbered spaces