• Square mailbox with a white frame set in a brick wall
  • Square mailbox opening width measurement
  • Square mailbox opening height measurement
  • Inside of the square mailbox with the door removed
  • Close-up of the hinge area on the square mailbox frame
  • Original square mailbox door, front, with knob
  • Original square mailbox door, back, with latch
  • Original square mailbox door with knob, screw and latch plate removed
  • Original latch plate with a tape measure, first dimension
  • Original latch plate with a tape measure, second dimension
  • Latch mount on the original door with a tape measure, width
  • Latch mount on the original door with a tape measure, height
  • Edge view of the original square mailbox door
  • Latch mount detail on the back of the original door
  • New 3D printed square replacement door, front, with handle hole and hinge pins
  • New 3D printed square replacement door, back
  • New 3D printed square replacement door, back with latch mount
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Mesh3D Up

Replacement Door for Metal Mailbox – Square (8.25 × 8.25 in)

Replacement Door for Metal Mailbox – Square (8.25 × 8.25 in)

$49.00 USD
$49.00 USD
Sale Sold out
Shipping calculated at checkout.
Color
Front Option

Your mailbox width, a question, or anything else I should know.

⚠️ Fits only the mailbox shown in the photos. Made only for the Square Metal Mailbox – approx. 8.25" x 8.25" style and hinge shown in the photos. This is a durable PLASTIC (PETG) replacement designed to fit and function like the original door. Compare your mailbox to the photos and check the measurements. Not sure? Send me a photo and I'll confirm the fit.

Lost or broken mailbox door? This custom 3D-printed replacement is designed specifically for the square metal mailbox shown in the listing photos — perfect for brick-in and built-in mailboxes where the box itself can't be replaced. Printed to order in durable, outdoor-rated PETG with a fast snap-in installation.

📏 Size & Fit

Approx. mailbox face size: 8.25" wide × 8.25" tall. Fits the hinge position and shape shown in the photos. If your mailbox looks different, this door will not fit — check my other listings or message me for a custom design.

🎨 Door Options & Colors

  • Blank – plain door front
  • Custom Text – numbers or name, permanently printed into the door

Door color: Black, White, or Gray. Text color (if selected): Black or White. For Custom Text, you'll enter your text and text color before adding to cart.

📦 What You'll Receive

  • 1 custom replacement mailbox door – Square (approx. 8.25" x 8.25")
  • Built-in hinge pins
  • Hole for the original handle

Made to order in Kingston, Oklahoma.

🛠 Easy Snap-In Installation

No tools required: remove the original hinge hole cover, insert the pegs on each side, and reinstall the hinge hole cover.

Note: durable 3D-printed PETG plastic — not metal.

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