Built to Outsmart Mail Thieves

The Fortress is our best-selling mailbox for good reason.

This beast of a mailbox takes care of your incoming mail—like a Fortress!

Built just like our other ¼” steel mailboxes, it simply gets the job done.

With the same outer dimensions as the Large Standard, it adds:

• A designated outgoing mail compartment (3" x 5" x 11.5")
• A 1/4" Steel Flag
• A covered incoming slot with pull-down satin nickel handle for extra weather and theft protection

Constructed from ¼” thick steel with reinforced, recessed doors and a narrow mail slot, every detail is designed to block prying and protect your privacy.

For the Ones Who Think Ahead

You check your doors at night. You keep a stocked pantry. You notice details others miss.

If that’s you, the Fortress matches your mindset. It’s not just a mailbox—it’s a steel barrier around your identity, your mail, and your peace of mind.

✅ USPS Postmaster General approved

How It Works

1. The mail carrier pulls down the handle, revealing the incoming slot at the top (11.5” W x 1.75” H).

2. Mail drops into the locked compartment—accessible only with your key.

3. Outgoing mail: when the handle is pulled down, a separate enclosed outgoing shelf is revealed below the incoming slot.

   • Outgoing mail cannot be locked (per postal standards) but is hidden out of sight, behind a door.

The Fortress is pre-drilled on the bottom (4 holes, 6 ¾” apart), designed to fit our Large Posts, or mount to existing surfaces.

Each unit comes with a durable powder-coated finish to combat all elements.

Special Features of the Fortress Mailbox

• 98 lbs of solid steel for extreme mail security
• Stores an average of 2 weeks of incoming mail
• Incoming slot: 1 ¾" x 11 ½"
• Outgoing section: 3" x 5" x 11.5" (behind top unlocked door)
• ¼" heavy-duty steel flag
• 2" continuous welded steel hinge
• 8" recessed slot design to:
  • Accept small packages
  • Prevent prying
  • Keep hands out
• All recessed doors
• All hand-welded design (no spot welds or rivets)
• 7-pin tubular lock (upgradable)

Included with Every Fortress

• Free 1 ¾" vinyl adhesive address numbers for the front door
  • Request specific numbers at time of order
  • 3" side numbers available
• Pre-drilled for our steel posts or racks
• High-performance powder coating inside and out
• Standard colors: Slate Gray or Glossy Black
• Special/custom colors available (see online color chart)

Custom Options

• Lock upgrades:
  • Slam Lock → Accept larger packages through the locked door
  • Medeco® Lock → Hardened steel upgrade
  • Vault Lock Extreme → Maximum security with Medeco®
• Rear door access (2 options, same price):
  • Front door replaced with fully welded steel plate
  • Rear door is keyed alike (if lock upgraded, both doors upgraded)
    • Upgraded lock purchased, it will be on both doors
• Custom powder coat colors available (extra charge)

Add a Large Steel Post

• In-Ground (5" x 5" x 57") — for cement installation
• Surface Mount (5" x 5" x 36") — for mounting on existing sidewalk