All metal construction with a durable power coat finish, gives a sturdy 50+ pound weight capacity while having a protective barrier. These universal rack mount shelves has a front mount design and are vented to provide maximum airflow keeping components cool. Standard 19″ width format, making it compatible with various 19″ server racks and cabinets, Rack Units: 1U Dimensions: 17.6″W x 1.75″H x 10″D