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Horizontal Mailbox | Wall Mount Mailboxes 1400 Series

As an indoor solution, these traditional-style mailboxes are most popular in apartment complexes, and university/military housing. The standard for decades, these are available as replacement units for worn-out installations. 


The Postal Service approves USPS-STD-4B+ boxes for mail delivery for existing indoor installations or existing protected outdoor locations. However, the Postal Service does not approve the purchase of this equipment for new installations and will not install Arrow locks in any such equipment. You may only order replacement parts for previously installed Postal Service-owned equipment.

 

Standard Features:

  • Front load
  • Recess-mounted
  • Prepared for USPS installed Master Lock
  • Anodized aluminum finish
  • 5-pin cylinder tenant cam lock with two keys (1,000 key changes)
  • Clear plastic number slots or engraved numbers
  • Snap-on outer trim kit (available by request)

Additional Features:

  • Private master lock
  • Configurable door sizes and layout options
Brand: Florence Product Code: 140052A
This Unit is NOT Approved for New ConstructionFront Loading (FL) Horizontals: please note that one door will be used as either a postal door (for U.S. Postal approved units) or as a master door (for private access units), and cannot be used as a tenant door. However this door can be used as an outgo..
$1,142.00
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Brand: Florence Product Code: 140053A
Front Loading (FL) Horizontal Wall Mount Mailboxes. Our Horizontal mailboxes are constructed of heavy-duty aluminum and come in a variety of durable colors. They are USPS approved but can also be used for private party access and distribution. Please note that one door will be used as either a posta..
$1,490.00
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Brand: Florence Product Code: 140054A
This Unit is NOT Approved for New ConstructionFront Loading (FL) Horizontal Wall Mount Mailboxes. Our Horizontal mailboxes are constructed of heavy-duty aluminum and come in a variety of durable colors. They are USPS approved but can also be used for private party access and distribution. Please not..
$1,990.00
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Brand: Florence Product Code: 140055A
This Unit is NOT Approved for New ConstructionFront Loading (FL) Horizontal Wall Mount Mailboxes. Our Horizontal mailboxes are constructed of heavy-duty aluminum and come in a variety of durable colors. They are USPS approved but can also be used for private party access and distribution. Please not..
$2,496.00
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Brand: Florence Product Code: 140054DA
This Unit is NOT Approved for New ConstructionProduct Details:Horizontal mailbox with 9 double wide doors, front load, fully recessedHorizontal mailbox unit is 5 doors high and 4 doors wide. One compartment reserved for USPS arrow lockFinish or Material:All aluminum construction with a clear anodize..
$1,320.00
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4 Parcel Lockers - 1400 Series USPS 4B+ Approved Horizontal Replacement Mailbox - Model 140054PLA
-25%
Brand: Florence Product Code: 140054PLA
This Unit is NOT Approved for New ConstructionProduct Details:Horizontal mailbox with 4 parcel lockers, front load, fully recessedHorizontal mailbox unit is 5 doors high and 4 doors wide.Finish or Material:All aluminum construction with a clear anodized aluminum finishLoading and Mounting:Front load..
$1,540.00 $2,042.00
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Brand: Florence Product Code: 140055PLA
Product Details:Horizontal mailbox with 20 doors and 1 parcel locker, front load, fully recessedHorizontal mailbox unit is 5 doors high and 5 doors wide. One compartment reserved for USPS arrow lockFinish or Material:All aluminum construction with a clear anodized aluminum finishLoading and Mounting..
$2,625.00
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Brand: Florence Product Code: 140055OUA
This Unit is NOT Approved for New ConstructionProduct Details:Horizontal mailbox with 20 doors and 1 outgoing collection box, front load, fully recessedHorizontal mailbox unit is 5 doors high and 5 doors wide. One compartment reserved for USPS arrow lockFinish or Material:All aluminum construction w..
$2,625.00
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Brand: Florence Product Code: 140062A
This Unit is NOT Approved for New ConstructionFront Loading (FL) Horizontals: please note that one door will be used as either a postal door (for U.S. Postal approved units) or as a master door (for private access units), and cannot be used as a tenant door. However this door can be used as an outgo..
$1,396.00
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Brand: Florence Product Code: 140063A
This Unit is NOT Approved for New ConstructionFront Loading (FL) Horizontal Wall Mount Mailboxes. Our Horizontal mailboxes are constructed of heavy-duty aluminum and come in a variety of durable colors. They are USPS approved but can also be used for private party access and distribution. Please not..
$1,735.00
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Brand: Florence Product Code: 140064A
This Unit is NOT Approved for New ConstructionFront Loading (FL) Horizontal Wall Mount Mailboxes. Our Horizontal mailboxes are constructed of heavy-duty aluminum and come in a variety of durable colors. They are USPS approved but can also be used for private party access and distribution. Please not..
$2,290.00
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Brand: Florence Product Code: 140065A
Florence 140065A - 1400 Series STD-4B+ Horizontal Mailbox (Replacement Use Only)REPLACEMENT USE ONLY - NOT Approved for New Construction or Major RenovationsIMPORTANT: This mailbox is NOT approved by USPS for new installations. Florence horizontal mailboxes are designed for use in larger multi-famil..
$2,750.00
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Brand: Florence Product Code: 140064DA
This Unit is NOT Approved for New ConstructionProduct Details:Horizontal mailbox with 11 double wide doors, front load, fully recessedHorizontal mailbox unit is 6 doors high and 4 doors wide. One compartment reserved for USPS arrow lockFinish or Material:All aluminum construction with a clear anodiz..
$1,680.00
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Brand: Florence Product Code: 140064PLA
This Unit is NOT Approved for New ConstructionProduct Details:Horizontal mailbox with 6 parcel lockers, front load, fully recessedHorizontal mailbox unit is 6 doors high and 4 doors wide.Finish or Material:All aluminum construction with a clear anodized aluminum finish.Loading and Mounting:Front loa..
$2,060.00
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Brand: Florence Product Code: 140065PLA
This Unit is NOT Approved for New ConstructionProduct Details:Horizontal mailbox with 25 doors and 1 parcel locker, front load, fully recessedHorizontal mailbox unit is 7 doors high and 5 doors wide. One compartment reserved for USPS arrow lockFinish or Material:All aluminum construction with a clea..
$3,135.00
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Brand: Florence Product Code: 140065OUA
This Unit is NOT Approved for New ConstructionProduct Details:Horizontal mailbox with 25 doors and 1 outgoing collection box, front load, fully recessedHorizontal mailbox unit is 7 doors high and 5 doors wide. One compartment reserved for USPS arrow lockFinish or Material:All aluminum construction w..
$3,135.00
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Brand: Florence Product Code: 140072A
This Unit is NOT Approved for New ConstructionFront Loading (FL) Horizontals: please note that one door will be used as either a postal door (for U.S. Postal approved units) or as a master door (for private access units), and cannot be used as a tenant door. However this door can be used as an outgo..
$1,600.00
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Brand: Florence Product Code: 140073A
This Unit is NOT Approved for New ConstructionFront Loading (FL) Horizontal Wall Mount Mailboxes. Our Horizontal mailboxes are constructed of heavy-duty aluminum and come in a variety of durable colors. They are USPS approved but can also be used for private party access and distribution. Please not..
$2,024.00
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Brand: Florence Product Code: 140074A
This Unit is NOT Approved for New ConstructionFront Loading (FL) Horizontal Wall Mount Mailboxes. Our Horizontal mailboxes are constructed of heavy-duty aluminum and come in a variety of durable colors. They are USPS approved but can also be used for private party access and distribution. Please not..
$2,550.00
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34 Tenant Doors with 1 Master Door - 1400 Series USPS 4B+ Approved Horizontal Replacement Mailbox - Model 140075A
-25%
Brand: Florence Product Code: 140075A
This Unit is NOT Approved for New ConstructionFront Loading (FL) Horizontal Wall Mount Mailboxes. Our Horizontal mailboxes are constructed of heavy-duty aluminum and come in a variety of durable colors. They are USPS approved but can also be used for private party access and distribution. Please not..
$3,299.00 $4,399.00
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Brand: Florence Product Code: 140074DA
This Unit is NOT Approved for New ConstructionProduct Details:Horizontal mailbox with 13 double wide doors, front load, fully recessedHorizontal mailbox unit is 7 doors high and 4 doors wide. One compartment reserved for USPS arrow lockFinish or Material:All aluminum construction with a clear anodiz..
$1,920.00
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Brand: Florence Product Code: 140074PLA
This Unit is NOT Approved for New ConstructionProduct Details:Horizontal mailbox with 6 parcel lockers, front load, fully recessedHorizontal mailbox unit is 7 doors high and 4 doors wideFinish or Material:All aluminum construction with a clear anodized aluminum finish.Loading and Mounting:Front load..
$2,120.00
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Brand: Florence Product Code: 140075OUA
This Unit is NOT Approved for New ConstructionProduct Details:Horizontal mailbox with 30 doors and 1 outgoing collection box, front load, fully recessedHorizontal mailbox unit is 7 doors high and 5 doors wide. One compartment reserved for USPS arrow lockFinish or Material:All aluminum construction w..
$3,750.00
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Brand: Florence Product Code: 140075PLA
This Unit is NOT Approved for New ConstructionProduct Details:Horizontal mailbox with 30 doors and 1 parcel locker, front load, fully recessedHorizontal mailbox unit is 7 doors high and 5 doors wide. One compartment reserved for USPS arrow lockFinish or Material:All aluminum construction with a clea..
$3,750.00
Add to Cart Add to Quote
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The Postal Service approves USPS-STD-4B+ boxes for mail delivery for existing indoor installations or existing protected outdoor locations. However, the Postal Service does not approve the purchase of this equipment for new installations and will not install Arrow locks in any such equipment.

Due to changes in postal regulations, these older-style horizontal and vertical mailboxes may now only be used to replace a current installation of similar mailboxes when no modification of the existing wall opening will be made. However, if the rough opening dimensions are changed during a replacement or remodel, or the installation is for new construction, STD-4C equipment will be required. Click on the links below to view the models that meet the USPS-STD-4C regulations.

https://www.uspostcompany.com/4c-front-load
or
https://www.uspostcompany.com/cbus

1400 Horizontal Series

  • Design: Wider, shorter compartments arranged horizontally.
  • Tenant Box Size: Often 12" W × 3"–5" H × 15" D (varies by door count).
  • Use Case: Larger lobbies, new construction, higher mail volume tenants.
  • Capacity: Greater — can fit thicker magazines, catalogs, and small parcels.
  • Postal Access: Same USPS Arrow lock master door system, exposing all compartments for delivery.
  • Status: USPS-approved for replacements ONLY.
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