Product Description Salsbury 2245 Standard Size (15") Letter Boxes - Recessed Mounted - Private Access ideal for colleges, schools, private postal centers, corporate mail centers, military bases, government agencies and many other applications. Feature a durable powder coated finish available in aluminum, brass, bronze, sandstone and green. Unit size: 15" W x 19" H x 6-3/4" D. Rough opening: 13-3/4" W x 17-3/4" H x 6-3/4" D. Fits into a rough opening and are secured with mounting hardware (not included) through the back or side panels. Fully integrated flanged collar fits over the rough opening. Salsbury Industries is an ISO 9001: 2008 certified company and has excelled in the field of manufacturing since 1936. From the Manufacturer Salsbury 2245 Standard Size (15") Letter Boxes - Recessed Mounted - Private Access ideal for colleges, schools, private postal centers, corporate mail centers, military bases, government agencies and many other applications. Feature a durable powder coated finish available in aluminum, brass, bronze, sandstone and green. Unit size: 15" W x 19" H x 6-3/4" D. Rough opening: 13-3/4" W x 17-3/4" H x 6-3/4" D. Fits into a rough opening and are secured with mounting hardware (not included) through the back or side panels. Fully integrated flanged collar fits over the rough opening. Salsbury Industries is an ISO 9001: 2008 certified company and has excelled in the field of manufacturing since 1936.