• Design 3 plastic mailbox this replacement door fits
  • Measuring the outside edges of a Design 3 mailbox, about 9.5 inches wide
  • Measuring the outside edges of a Design 3 mailbox, about 11 inches tall
  • Hinge hole location on the Design 3 mailbox, close to the front and bottom edges
  • Old broken door on a Design 3 mailbox
  • New 3D printed replacement door for a Design 3 mailbox, front
  • New 3D printed replacement door for a Design 3 mailbox, back
  • Built-in pegs printed as a solid part of the replacement door
  • Lightly textured door front, transferred from the printer plate
  • New handle, printed separately and attached on the inside of the door
  • Optional custom text printed into the door, shown with house number 8772
  • Design 3 plastic mailbox opening measured about 10 inches wide
  • Design 3 white brick-in mailbox depth measurement
  • Design 3 plastic mailbox height measured about 7 inches
  • Design 3 mailbox hinge and bottom edge close-up
  • New 3D printed replacement door for Design 3 plastic mailbox
  • Before you order: match your mailbox to the listing photos and check width, height, hinge hole location and shape
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Mesh3D Up

Replacement Door for Plastic Mailbox ā€“ Design 3

Replacement Door for Plastic Mailbox ā€“ Design 3

$49.00 USD
$49.00 USD
Sale Sold out
Color
Front Option

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

Not sure it fits? Use the door finder or send me photos before you order.

Free US shipping on this item. Most orders ship within 3 to 5 business days. Shipping details

āš ļø Fits only the mailbox shown in the photos. This replacement door is made only for the plastic mailbox style and hinge shown in the photos. Compare your mailbox to the photos and check the measurements below. Not sure? Send me a photo and I'll confirm the fit for you.

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

šŸ“ Size & Fit

Designed to match Plastic Mailbox Design 3 ā€” approx. mailbox face size 9.5" wide Ɨ 11" tall. This door fits the hinge position and shape shown in the photos. If your mailbox looks different, this door will not fit ā€” I have other styles in my shop, or message me and I can make a new design for you.

šŸŽØ Door Options & Colors

  • Blank ā€“ plain door front
  • Custom Text ā€“ numbers or name, permanently printed into the door

Door color: Black, White, or Gray. Text color (if selected): Black or White.

āœļø Custom Text

For Custom Text, you'll enter your text (numbers or name) and text color before adding to cart.

šŸ“¦ What You'll Receive

  • 1 custom plastic mailbox door ā€“ Design 3
  • Built-in hinge pins
  • Built-in latch/handle

Made to order in Kingston, Oklahoma.

šŸ›  Easy Snap-In Installation

No tools required: insert one hinge pin, flex the door slightly, and snap in the other side. Done in seconds.

Note: These are durable 3D-printed PETG plastic replacement doors ā€” not metal. Because each door is printed layer by layer, minor print lines may be visible.

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