SKU: 51811911301

Salsbury 3700 Horizontal Series 9-Compartment Recessed Mount Mailbox, Front-Loading Aluminum

Sale price$473.59 Regular price$526.21
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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Description

Salsbury 3700 Horizontal Series 9-Compartment Recessed Mount Mailbox, Front-Loading Aluminum9 door recessed 4C horizontal mailbox USPS approved 4C recessed mailbox with nine tenant compartments for apartments and commercial buildings. Constructed of heavy duty aluminum with stainless hardware and a durable powder coated finish, it features front loading access and an outgoing mail slot with weather hood. Key Features: USPS Approved 4C Design: Meets USPS STD 4C specs for new construction and major renovations Durable Construction: Heavy duty

9-door recessed 4C horizontal mailbox

USPS-approved 4C recessed mailbox with nine tenant compartments for apartments and commercial buildings. Constructed of heavy-duty aluminum with stainless hardware and a durable powder-coated finish, it features front-loading access and an outgoing mail slot with weather hood.


Key Features:

  • USPS Approved 4C Design: Meets USPS-STD-4C specs for new construction and major renovations
  • Durable Construction: Heavy-duty aluminum body with stainless steel hardware and powder-coated finish
  • Secure Access: Heavy-duty cam locks with dust/rain shields and 3 keys per door
  • Convenient Outgoing Mail: Integrated mail slot with anti-fish plate and weather protection hood
  • Recessed Front-Loading: Clean built-in look with factory-installed trim and solid rear cover

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Series 3700 4C Horizontal
Configuration 6-door high unit with 9 tenant doors (front loading) and outgoing mail slot
Mounting Type Recessed mount
Overall Dimensions 31.125 in W x 23.875 in H x 16.5 in D
Material Heavy-duty aluminum with stainless steel hardware
Finish Durable powder-coated (aluminum color; other finishes available)
Door Sizes MB1 doors 3-1/4 in H x 13-1/4 in W; MB2 6-3/4 in H x 13-1/4 in W; MB3 10-1/4 in H x 13-1/4 in W; MB4 13-3/4 in H x 13-1/4 in W
Security Heavy-duty cam locks with dust/rain shields; anti-fish plate on mail slot
Outgoing Mail 10-3/4 in W x 3/4 in H slot with weather protection hood
Compliance USPS-STD-4C; ADA height compliant units available
Included Factory-installed 3/4 in W x 1/4 in D trim; solid rear cover; 4C connector kit
Use Indoor or outdoor
Brand Salsbury Industries

Frequently Asked Questions (FAQ):

Q: Is this unit USPS approved?
A: Yes, it is manufactured to USPS-STD-4C and is USPS approved for mail delivery.


Q: How many tenant compartments does it include?
A: Nine individually numbered compartments plus an outgoing mail slot/carrier access door.


Q: Is it suitable for outdoor use?
A: Yes, it’s designed for indoor or outdoor installation with a durable powder-coated finish.


Q: What mounting style is required?
A: Recessed mount into a wall; free‑standing or surface-mount enclosures are optional accessories.


Q: Does it include locks and keys?
A: Each door includes a heavy-duty cam lock and three keys; the USPS installs the master arrow lock for the carrier access door.


Streamlined Mail Center, Seamless Architecture

This recessed mailbox unit dissolves into the wall with crisp, architectural lines, creating a refined mail hub for multifamily entries. The uniform aluminum face and numbered doors bring order and quiet sophistication to shared spaces. Pair it with warm wood cladding or honed concrete to heighten the material contrast and elevate the lobby experience. It’s a polished essential that signals thoughtful, modern living.


Upgrade your building’s mail center with this secure, USPS-approved 9-door recessed unit—built to last and ready for seamless installation.

Installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51811911301

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4.8 ★★★★★
Based on 2021 reviews
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Product Reviews
A
Amazon customer
Omaha, US
★★★★★ 4
Stylish Aesthetic with Functional Limitations
Color: Black
This desk organizer offers a sophisticated look that complements modern furniture and decor quite well. The combination of aluminum and walnut creates a professional appearance that effectively tidies up a workspace or nightstand. I particularly appreciate the soft-touch base, which provides a safe surface for delicate items like phone screens or watches, ensuring they remain free of scratches. Additionally, the materials are very easy to wipe down and maintain. However, the build quality does not entirely justify the premium price point. The aluminum components feel more like thin, shaped sheet metal rather than a solid, high-end material. While the walnut accents are a nice touch, they lack the weight and substance I expected for a valet tray in this category. The primary functional drawback lies in the magnetic adjustment system. The magnets are relatively weak, meaning that accidentally bumping a divider while reaching for an item can easily shift the layout. This requires frequent readjustments, which can be frustrating during a busy workday. Furthermore, the magnetic rails can interfere with other metallic or magnetic objects you might try to store. If you are looking for a purely aesthetic upgrade to organize lightweight items, this tray serves that purpose, but it falls short in terms of stability and material density.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
K
KAi
Birmingham, US
★★★★★ 5
Love the customizable dividers
Color: Black, Color: Black
I really like this desk drawer organizer tray. It comes with two removable adjustable dividers that are magnetic. They have a strong magnetic pull and stay in place and do not move or shift at all. I love the overall look of it. It’s very sophisticated looking. It can be suitable for a man or a woman. If it’s into my drawer perfectly and I love the smooth modern design of it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
M
Michigan Cur
Pawtucket, US
★★★★★ 5
A nice customizable organizer.
Color: Black, Color: Black
This is a nice organizer for a drawer or nightstand. Comes in a box that is not overly bulky and is well protected. It's quick and easy to adjust and put together. the seperators are magnetic so you can customize it to fit your needs. There are two cut outs for charging cords and it fits a phone easily along with other accessories. The unit feels solid and well built, it has a good weight to it. I do wish the deviders were a bit easier to get square, but that's more just my idiosyncrasies.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
J
Jason B
Pawtucket, US
★★★★★ 5
Nice Desk Organizer
Color: Black, Color: Black
This particular desk organizer has the little strips of wood that each have a magnet installed inside them. This allows you to move the wood strips to different locations and adjust the areas to fit whatever size item you want to put in there. It's very easy to just move them around and the bottom of the tray has a nice material in it that prevents scratching the items you place in there. The usable area on the tray is 12-1/2" x 8-1/4" x 3/4" and the overall size is 13-5/8" x 8-3/8" x 1". It fits nicely in drawers or simply having it sit on top of a desk to hold items. It also is made out of good quality and is very sturdy.
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Reviewed in the United States on March 2, 2026
Q
Queen_bee
Lexington, US
★★★★★ 4
Great product quality
Color: Black
This had literally everything I was looking for, but… just too large for the area I wanted it in. Check the measurements and compare that to your actual space. If they had about 1/2 to 1/3 of this size I would snatch it up in a heartbeat. It has a groove for your phone charging cable and the moving magnetic dividers are genius. I’m looking for something to put on my nightstand to allow the phone to charge at night but face down. Extra section for earrings or hair accessories, etc would be great. This has that potential. Just needed it smaller.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026

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