Ideal for schools, corporate mailrooms, government agencies and many other applications. Includes factory installed 0.75 in. W x 0.25 in. D trim and a solid rear cover . A front loading door panel swings on a continuous hinge . One mailbox opening contains a master commercial lock and cannot be used for mail distribution . Comes standard with lock and keys for each individual mailbox. Does not include master lock for U.S.P.S. entry; must be provided by U.S.P.S. . Made of Aluminum. 35.75 in. W x 16.5 in. D x 29.75 in. H (75?lbs.)