The Large Standard - 1/4 Inch Steel High Security Locking Mailbox

Regular price $515.00 Sale price$439.00Save $76.00
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Ready for Serious Mail Security?

The Large Standard is built for high-volume protection.

With ¼” thick steel walls, reinforced 3/16” recessed doors, and a streamlined, pry-resistant design, this 96-pound tank of a mailbox holds about 2 weeks of mail —perfect for short trips or busy weeks.

It’s the same construction as The Enforcer Mailbox just scaled up 2 inches in every direction.


Built for People Who’ve Had Enough

If your last locking mailbox failed, you’re not alone. We hear from frustrated customers every day.

The Large Standard was made for exactly that reason: to be the final answer. Tested against theft attempts coast to coast, it’s built to withstand it all.

If you’re done taking chances, this is the last mailbox you’ll ever need.

USPS Postmaster General approved


How It Works

  1. The mail carrier inserts incoming mail into the slot at the top (11.5” W x 1.75” H).
  2. Mail drops into the locked compartment—accessible only with your key.
  3. Optional outgoing mail rests below the incoming slot.
    • Holds 1–4 envelopes (must stick out for carrier pickup).
    • No concealment door like some of our other larger models.

Additional details:

  • Pre-drilled on the bottom (4 holes, 6 ¾” apart) to fit Large Posts, or mountable to existing surfaces.
  • Finished with thick powder-coating for weather resistance.
  • Door secured with a 7-pin tubular pick-proof lock (upgradable).
  • Overhang protects against rain and vandalism.

Special Features of the Large Standard

  • 96 lbs of solid steel for extreme security
  • Stores an average of 2 weeks of mail
  • Incoming slot: 1 ¾" x 11 ½"
  • 2" continuous welded steel hinge
  • 8" recessed slot depth to:
    • Accept small packages
    • Prevent hand entry
  • All recessed doors: VERY important to defend against prying
  • All hand-welded (no rivets or spot welds)
  • 7-pin tubular lock (upgradable)
  • High-performance powder coating (inside & out)
  • Standard colors: Slate Gray or Glossy Black
  • Special/custom colors available (see online color chart)

Included with Every Large Standard

  • 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 or other surfaces you might have
  • Can be installed on our breakaway (surface mount) post

Custom Options & Upgrades

  • Lock upgrades:
    • Slam Lock → Accept larger packages through the locked door
    • Medeco® Lock → Hardened steel upgrade
    • Vault Lock Extreme → Maximum security with Medeco®
  • Color upgrades:
  • Outgoing mail option:
    • Add outgoing slot (1–4 envelopes, non-locking)
  • Post options:
    • Large steel post:
      • In-Ground (5" x 5" x 57") for cement installation
      • Surface Mount (5" x 5" x 36") for existing sidewalks
  • Rear door access (same price, 2 options):
    • Front door replaced with welded steel plate
    • Front and rear doors keyed alike
      • If upgraded lock is purchased, both doors are upgraded
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