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SKU: WL-3628ARPBM  |  View All 4B Mailboxes 28 Doors - Rear Loading - Private Use

28-Door 4B+ Horizontal Mailbox Rear Loading

(View all from Salsbury Industries)
& Free Shipping!
List Price:
You Save:

$279.03 (20%)

Volume Discount Pricing
2 - 5$1,080.50
6+ $1,051.50
According to manufacturer:
Usually ships in 2 to 3 weeks
Ships directly from the factory floor to ensure the quickest available delivery.

28-Door 4B+ Horizontal Mailbox Rear Loading

Salsbury 4B+ Horizontal Mailboxes for designed and built for private access. Salsbury horizontal mailboxes come in 28-door units. Rear loading horizontal mailboxes are recommended for use residential and commercial buildings. Secure 5-pin cylinder cam lock with keys ensures that your mail is kept safe from the elements at all times. Custom options are available to match your unique requirements.

4B+ Aluminum 28 Doors Rear Loading Private Mailbox Features:

  • 4B+ rear-loading horizontal mailbox for private access
  • All aluminum construction
  • Ideal for use in condominiums, apartments, colleges, and corporate buildings
  • 5-pin cylinder cam lock with 2 keys (1,000 different key changes)
  • "A" size doors measure 5-1/4"H x 6-1/2"W
  • Includes 5/8''H x 2"W clear plastic card holder (card included) for easy tenant and/or box number identification
  • Factory installed 3/4"W x 1/4"D trim and removable aluminum rear cover included
  • Comes in sandstone, aluminum, bronze, and gold
  • Custom engraved placards (#3667) available
  • Optional label holders and self-adhesive numbers
All Salsbury 3600 series are made entirely of aluminum. The U.S.P.S. approved 4B+ standard horizontal mailboxes are available in units with standard A doors and larger B doors. Units with standard A doors are available in 3, 4 or 5 doors wide and 5, 6 or 7 doors high. Units with larger B doors are available in 2 doors wide and 5, 6 or 7 doors high.

Each aluminum door includes a five (5) pin cylinder cam lock with two (2) keys and a 2" W x 5/8" H clear plastic card holder (card included) to identify the tenant’s name and/or box number. The mailbox compartments are made of sheet aluminum. Custom engraved placards (#3667) are available as an option upon request.

4B+ standard horizontal mailboxes feature a durable powder coated finish available in four (4) contemporary colors – aluminium, bronze, gold, sandstone and are ideal for apartments, condominiums, commercial buildings, colleges and schools and many other applications.

If Front Loading:
Door panel swings on a continuous hinge. One mailbox opening is required for a master postal or commercial lock and cannot be used for mail distribution. Units include factory installed 3/4" W x 1/4" D trim and a solid rear cover.

If Rear Loading:
Mailboxes can be used for either U.S.P.S. access (master postal lock not required) or private access (master commercial lock not required). All openings are usable. Units include factory installed 3/4" W x 1/4" D trim and a removable rear cover.

Model: 3628
Description: 28 A Doors (27 usable on FL)
Unit Size - FL and RL (includes trim):
29-1/4" W x 40-3/4" H x 16-1/2" D
85 lbs.

4B+ Standard Horizontal Mailbox Options

  • Each mailbox door includes a five (5) pin cylinder cam lock with two (2) keys (1,000 different key changes)
  • Lock - for 3600 series (#3690)
  • Additional keys per lock when ordering (#3698)
  • Key blanks - box of 50 (#3699)
  • Master commercial lock - when front loading units are for private access with (2) keys (#3675)
  • Card holder - clear plastic - card and metal insert included (#3697)
  • Self-adhesive numbers - sheets of 100 (#3695)
  • 4B+ Master door security retrofit kit (#3696)
  • Custom Engraved Placards - 2" W x 5/8" H (#3667)

Door and Compartment Identification
Each mailbox door includes a 2" W x 5/8" H clear plastic card holder to identify the tenant’s name and/or box number. Self-adhesive numbers (1-3000 available) are supplied upon request with a standard order. Custom identification systems are available as an option upon request. Label holders (#1070) neatly organize and identify the front/rear of the mailbox compartments and are available as an option upon request.

For Your Reference:

OUR SKU is Salsbury Industries 3628ARP

This item is also sometimes listed under the following manufacturer numbers:

Dimensions & Weight
Ship Weight:
28-Door 4B+ Horizontal Mailbox Rear Loading
29.25 in. W x 40.75 in. H x 16.5 in. D
85.00 lbs
General Category:
Commercial Mailbox
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28-Door 4B+ Horizontal Mailbox Rear Loading
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Usually ships in 2 to 3 weeks

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