Quadruple Mailbox

Simplified Delivery With a 4 Unit Mailbox

If you have four units or a business with four separate offices, a quad mailbox post is the way to go. A 4 unit mailbox means each user has their own dedicated space for their mail and the entire setup fits into one post giving your exterior a cohesive look.

Benefits of a Quad Mailbox Post

• Convenience
  Four mailboxes in one spot makes daily operations smooth for both residents and mail carriers.

• Security
  By consolidating mailboxes you can easier monitor for tampering and keep the area well lit if needed.

• Aesthetics
  One post with four boxes looks better than multiple standalone units scattered across the property.

USPS Compliance and Placement

• Standard Height: Set the lower box openings around 41–45 inches above ground level.

• Label Each Unit: Use numbered or lettered plates so carriers and tenants can identify the correct box at a glance.

• Distance: 6–8 inches from the curb; make sure your quad post doesn’t block traffic or sidewalks.

Installing Your Quad Mailbox Post

• High Quality Materials: Look for galvanized steel or aluminum posts that can withstand rust and seasonal changes.

• Sturdy Anchorage: With four mailboxes the post has to handle extra weight. Consider concrete footings or deeper post holes.

• Community Rules: Always check local regulations on mailbox installations before you start.

Top Brands

• Whitehall Products: Combines style with solid aluminum construction for weather resistance.

• Salsbury Industries: Dependable and USPS approved; perfect for residential and commercial use.

• Mailboss: Robust security with locking features; great if mail theft or vandalism is a concern.

Shop Now and Get Free Shipping

Upgrade your multi-unit or multi-office property with a mailbox 4 unit solution that’s convenient, durable and stylish. Shop now to find your quad mailbox and get free shipping on most orders.