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Salsbury 3624GFU 4B Mailboxes 23 Tenant Doors Front Loading - USPS Access

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SKU: WL-3624GFUBM  |  View All 4B Mailboxes - A Sized Doors
Salsbury 3624GFU 4B Mailboxes 23 Tenant Doors Front Loading - USPS Access
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List Price:
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$329.03 (20%)

Volume Discount Pricing
2 - 5$1,215.50
6+ $1,112.67
Not USPS Approved for New Construction. For Private Use or Replacement Purposes only. We strongly advise you discuss the installation with your local Post Master prior to purchase. New construction will require 4C Horizontal Mailboxes.
According to manufacturer:
Usually ships in 10 to 14 business days
Ships directly from the factory floor to ensure the quickest available delivery.

Salsbury 3624GFU 4B Mailboxes 23 Tenant Doors Front Loading - USPS Access

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: 3624
Description: 24 A Doors (23 usable on FL)
Unit Size - FL and RL (includes trim):
29-1/4" W x 35-1/4" H x 16-1/2" D
75 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 3624GFU

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

Dimensions & Weight
Ship Weight:
Salsbury 3624GFU 4B Mailboxes 23 Tenant Doors Front Loading - USPS Access
29.25 in. W x 35.25 in. H x 16.5 in. D
75.00 lbs
General Category:
Commercial Mailbox
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Frequently Asked Questions

Salsbury 3624GFU 4B Mailboxes 23 Tenant Doors Front Loading - USPS Access
Shipping Information:

Shipping Estimate:

Usually ships in 10 to 14 business days

Stock Status:

In Stock

Ships to:

Ship Method:

FedEx/UPS (Learn More)

Shipping Policy:

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Regarding a Product's Shipping Estimate

Understanding Lead Times

The lead times listed on this product page represent the best-case scenario for shipping estimates. While we may show that a product "usually ships" within a given period, this period should not be confused with a delivery estimate. Rather, we expect the product to ship from the manufacturer's warehouse within this time-frame.

What does this mean for you? Once you place an order on our site, we begin processing the order with the manufacturer. The processing lead time we list on the product page is the most current estimate from the manufacturer regarding the product.

Below, we answer the top three FAQs our customers have regarding delivery estimates.


How long will it take to receive my commercial mailbox?

When you order a commercial or cluster mailbox, we process the order with the manufacturer within 1 business day. Once processed, the order usually ships in the time-frame listed on the product page. Since Cluster Mailboxes are large items, they ship via freight carriers. This means that the transit times for these will usually be 5 to 7 business days.

A few things to note about purchasing a cluster mailbox or similar large, commercial-grade product:

  • The freight carrier will call the number you list on the shipping address a day before delivery to schedule a delivery appointment with you.
  • The manufacturer ships using their chosen freight carrier depending on the products ordered and the delivery location.
  • The majority of online retailers who sell commercial mailboxes (CBUs, etc.) ship directly from the manufacturers, just as we do.
  • If you purchase a commercial mailbox from us and decide to cancel because a competitor lists a "faster" lead time on their site, you may be delaying the time it will take to receive your mailboxes. Why? Because you are placing a new order to be sent to the same manufacturer for processing.
  • If you choose professional mailbox installation with your commercial mailbox purchase, please note that same-day installation is not available. Installation will be scheduled after the delivery of your mailbox. In most cases, installation is completed within one week following delivery.

What if I order multiple products from different brands?

If you ordered multiple products, it is possible that they are made by different manufacturers. If this is the case, your products will ship to you separately from each manufacturer.

For example, if you purchase a Mayne Post with a Whitehall Mailbox, your post will ship from Mayne's warehouse in about 3 business days, but your mailbox will ship separately from Whitehall in about 2 to 3 weeks if customized with address numbers.

How can I estimate my shipment's transit time?

Depending on the carrier and your location, transit times will vary. Delivery estimates are best projected using your carrier tracking number. Once your order ships, we'll send you a shipping confirmation email that includes your carrier (FedEx, UPS, YRC, etc.) and tracking number.

Note: If you place an order with us and do not receive an Order Confirmation email, check your spam inbox. If you still do not see an Order Confirmation email in your inbox, contact us right away at (866) 707-0008 . We will provide you with your Order Number and any other details you need.

What is the CBU Price Match Guarantee?

Price Match

It's pretty simple. If you find this model* cluster mailbox on another online retail site for a lower price, including any shipping and taxes, then we will match that competitor's price.

Before we can match a competitor's price, please note:

  • We will need the exact URL of the product page in question. A screenshot of the competitor website will not suffice.
  • Some competitors hide their freight charges until you enter the checkout, so please keep this in mind.
  • If you are ordering multiple units, check our Volume Discount Pricing table (to the right of our sale price) to see if we're the better price for the quantity you need.

* By "model", we mean a CBU that has the same number of tenant doors and the same manufacturer specifications.

Wall Mount Mailboxes Locking Mailboxes Commercial Residential