Features Recessed Mounted 4C Horizontal Mailboxes are U.S.P.S. Approved Manufactured by Salsbury Industries to USPS-STD-4C Specifications Ideal for apartments, commercial buildings and residential developments Required for new construction and major remodels For indoor or outdoor use Constructed of heavy duty aluminum and stainless steel hardware Feature a durable powder coated finish Doors include a heavy duty cam lock with a dust/rain shield and 3 keys MB1 doors are 3-1/4 39 H x 13-1/4 39 W, MB2 doors are 6-3/4 39 H x 13-1/4 39 W, MB3 doors are 10-1/4 39 H x 13-1/4 39 W and MB4 doors are 13-3/4 39 H x 13-1/4 39 W 3 MB1 equivalent door high units to fifteen 15 MB1 equivalent door high units, plus our popular maximum height units 56-3/4 H Configurations that are 1 door wide single column and 2 doors wide double column U.S.P.S. standard 4C requires a minimum of 1 parcel locker for every 10 tenant compartments Parcel lockers must be a minimum of 15 39 H to meet the 1 10 ratio. Once this ratio has been met, smaller parcel lockers may also be added Fully integrated and stand-alone parcel lockers are varying sizes PL3 10-1/4 39 H , PL4 13-3/4 39 H , PL4.5 15-1/2 39 H , PL5 17-1/4 39 H and PL6 20-3/4 39 H Most units include a compartment for outgoing mail collection and is labeled Outgoing Mail The front of the outgoing mail compartment / carrier access door is comprised of a fixed panel s and there is no U.S.P.S. master lock access door Outgoing mail compartment includes a 10-3/4 W x 3/4 H mail slot and weather protection hood Include factory installed 3/4 39 W x 1/4 39 D trim and 1 or 2 heavy duty rear access door s with latches and continuous hinges Include a 4C horizontal mailbox connector kit to easily connect multiple recessed mounted 4C horizontal mailbox units hardware included ADA height compliant units - ADA compliance guidelines Salsbury Industries is an ISO 9001 2015 certified company and has excelled in the field of manufacturing since 1936 Compartments Custom engraved placards Custom engraved doors - regular Custom engraved doors - black filled Replacement locks Additional keys Key blanks Specifications Color Gold Dimension 31.125 W x 55 H x 17 D Weight 176 lbs...