3811D-20 Salsbury Surface Mounted 4C Mailbox – 20 MB1 Doors (Includes 3711D-20 Mailbox and 3811D Enclosure) – 11 Door High Unit (42-1/8 Inches) – Double Column

• Surface Mounted 4C Horizontal Mailboxes include a U.S.P.S. approved 4C horizontal mailbox unit and a matching surface mounted enclosure – minor assembly required
• Provide a convenient means of installing 4C horizontal mailboxes in locations where walls are not deep enough for a recessed mounted installation
• Ideal for apartments, commercial buildings and residential developments
• 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
• Accessed from the front through 1 or 2 easy opening master door panels
• 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 five (5) MB1 equivalent door high units to fifteen (15) MB1 equivalent door high units, plus our popular maximum height units (57-7/8”H)
• Available in 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″ 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 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)
• Most units include a compartment for outgoing mail collection and is labeled “Outgoing Mail”
• Outgoing mail compartment / carrier access door 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
• ADA height compliant units available – ADA compliance guidelines
• Salsbury Industries is an ISO 9001:2015 certified company and has excelled in the field of manufacturing since 1936

• Custom engraved placards
• Custom engraved doors – regular
• Custom engraved doors – black filled
• Replacement locks
• Additional keys
• Key blanks
• Tenant parcel locker lock
• Outgoing mail slot plug kit

Installation Video – Tenant Door Replacement

Installation Video – Locating Tenant Keys