






43" Slip-Over Post
The Adoorn 43" Slip-Over Post fits over an existing wood 4x4 post, giving you a fast, no-dig way to mount your Adoorn mailbox. It's sturdy, weatherproof, and built to keep your mailbox secure year after year.
Don’t have a wood post? Shop the In-Ground Post.
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Upgrade your post, no digging.
Slide the Adoorn post right over your existing 4x4 and you are done. No digging, no concrete, no waiting for it to set. Heavy-duty steel in a clean matte black, with a surface plate ready for your mailbox.


A real post upgrade in about fifteen minutes.
- 1
Start with a 4x4 in the ground
Use the treated wood post you already have, or set a fresh one. No new footing required. The 4x4 wood post is sold separately.
- 2
Slip the steel post over it
The Adoorn sleeve drops straight over the 4x4 and hides it completely, top to soil line.
- 3
Mount your mailbox on top
The surface plate is pre-drilled for your Adoorn post-mount mailbox. Tighten it down and you are finished.

A surface plate, ready for your mailbox
The pre-drilled surface plate lines up with Adoorn post-mount mailboxes, so the whole setup feels like one solid piece. Clean lines, square profile, and steel that does not flex.
Small upgrade. Big difference.
No-dig install
Slips over your existing 4x4. No auger, no concrete, no cure time.
Fits a standard 4x4
Sized for a common treated wood post so it works with most yards.
Weatherproof steel
Heavy-duty steel and a rust-fighting powder-coat finish built to last.
Surface plate
Pre-drilled surface plate fits Adoorn post-mount mailboxes for a clean, solid join.
43" height
Sets your mailbox at the USPS-required curbside height.
Hides a worn post
Wraps a weathered or mismatched 4x4 in clean matte black.
Versus setting a whole new post.
The slip-over gives you the look and stability of a fresh install without the labor, the mess, or the wait.
| Adoorn Slip-Over Post | Digging a New Post | |
|---|---|---|
| Digging or concrete | None | Required |
| Typical install time | About 15 minutes | Most of a weekend |
| Cure / set time | None | 24 to 48 hours |
| Finish | Matte black powder coat | Bare wood or paint |
| Weatherproof | Yes | Varies |
| Mailbox mounting | Pre-drilled surface plate | DIY brackets |
| Height | 43", meets USPS requirements | You measure and cut |
Install time is a typical estimate. Confirm final specs against the product spec sheet before publishing.

Level it, drop it, done.
No crew and no special tools. Most people slide it on, check it with a level, and secure it in a single afternoon.
Now add your mailbox.
The slip-over post is built for Adoorn post-mount mailboxes. Pick your size and color, and the surface plate does the rest.
Shop Post Mount MailboxesGood questions, quick answers.
Do I have to dig or pour concrete?
What size post does it fit?
How tall is it, and does it meet USPS requirements?
What mailbox works with it?
Is it weatherproof?
How do I install it?
Have more questions? Contact us and we will help you set it up.
Set it up this afternoon.
A sturdier, better-looking post without the dig. Slide it on, mount your mailbox, and call it done.
Shop the Slip-Over Postfrom $99.99