4C Horizontal Double Column – 13 MB1 Doors


5 Year manufacturer's warranty on workmanship, defect and U.S.P.S. Approved. The New 4C Mailboxes are required for new construction and major remodels. U.S.P.S. standard 4C requires a minimum of 1 parcel locker for every 10 tenant compartments. For indoor or outdoor use. Constructed of heavy duty aluminum and stainless steel.

Available for installation (3) options Recessed into a wall, Surface Mounted or Free Standing. Photos of Free Standing and Surface Mounted units are typical images to show how the mailbox unit looks installed into the optional cabinet. The cabinet will be sized to fit the Model # you order.


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Box Numbering Details

By default, boxes are labeled with a small placard beginning with number 1 and going up to the number of boxes. Parcel lockers are 1P, 2P, etc. If you want Custom placards (for example labeling the boxes from 17 to 32 instead of 1-16), choose the custom placard option, or the Engraved Door option (with the numbers engraved into the door) above, and then enter the way you want your boxes labeled (up to 3 characters per box). Note: the cost for either custom numbering of the placards or engraving is only $5 / box.


Required for new construction and major remodels.U.S.P.S. standard 4C requires a minimum of 1 parcel locker for every 10 tenant compartments. For indoor or outdoor use, Constructed of heavy duty aluminum and stainless steel hardware.

Feature a durable powder coated finish available in aluminum, bronze, gold and sandstone.Doors include a heavy duty cam lock with a dust/rain shield and 3 keys .

MB1 doors are 3-1/4″ H x 13-1/4″ W, MB2 doors are 6-3/4″ H x 13-1/4″ W, MB3 doors are 10-1/4″ H x 13-1/4″ W and MB4 doors are 13-3/4″ H x 13-1/4″ W

Available in three (3) MB1 equivalent door high units to fifteen (15) MB1 equivalent door high units, plus our popular maximum height units (56-3/4”H)

A compartment equivalent to two 3-1/4” high standard doors is used for outgoing mail collection and is labeled “Outgoing Mail”.

Fully integrated and stand-alone parcel lockers are available in varying sizes: PL3 (10-1/4″ H), PL4 (13-3/4″ H), PL4.5 (15-1/2″ H), PL5 (17-1/4″ H) and PL6 (20-3/4″ H)

Outgoing mail compartment includes the U.S.P.S. master lock access door (lock installed by the U.S.P.S.) and cannot be used for mail distribution.

Outgoing mail compartment includes a 10-3/4″ W x 3/4″ H mail slot and weather protection hood.

Includes factory installed 3/4″ W x 1/4″ D trim and a solid rear cover.31.125″ W x 56.75″ H x 17″ D.

Available for installation Recessed into a Wall, Surface Mounted or Free Standing. If you order Surface Mounted or Free Standing, that will also include a metal enclosure which holds the mailbox unit.  Select those options in the Option List below.

NOTE: Surface Mount and Free Standing are FRONT LOADING ONLY.  Recessed Mount are also available as Rear Loading.  (Rear Loading has its own product listing).  Recess Mounted Units can be connected with a 4C Horizontal mailbox connector kit to eliminate the need for wood studs between the units. If you order more than one unit of the same size, the connector kit is included.

Additional information

Weight 170 lbs
Dimensions 17 x 31.125 x 56.75 in
Manufactured by