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Save $75

43" Slip-Over Post

Sale price$99.99 Regular price$174.99
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Save $75

43" Slip-Over Post

Sale price$99.99 Regular price$174.99

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.

Add Mailbox Address Numbers Buy your post and add Mailbox Address Numbers.
Color:Black
4" Mailbox Address Numbers: Silver
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Regular price$24.99 Sale price$9.99 each
Free Shipping No-Dig Install Fits a Standard 4x4 Post Weatherproof Steel Meets USPS Height Requirements Free Shipping No-Dig Install Fits a Standard 4x4 Post Weatherproof Steel Meets USPS Height Requirements
43" Slip-Over Post

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.

Matte black Adoorn 43 inch slip-over post installed curbside in a mulch bed | Adoorn
Guiding the steel slip-over post down over an existing wood 4x4 post at the curb | Adoorn
How it works

A real post upgrade in about fifteen minutes.

  1. 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. 2

    Slip the steel post over it

    The Adoorn sleeve drops straight over the 4x4 and hides it completely, top to soil line.

  3. 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.

Angled view of the black pre-drilled surface plate on top of the slip-over post | Adoorn
Made to hold

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.

Made to do more

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.

How we compare

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 PostDigging a New Post
Digging or concreteNoneRequired
Typical install timeAbout 15 minutesMost of a weekend
Cure / set timeNone24 to 48 hours
FinishMatte black powder coatBare wood or paint
WeatherproofYesVaries
Mailbox mountingPre-drilled surface plateDIY brackets
Height43", meets USPS requirementsYou measure and cut

Install time is a typical estimate. Confirm final specs against the product spec sheet before publishing.

A person sliding the black slip-over post over an existing curbside wood post, home in the background | Adoorn
Real installs

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.

Finish the setup

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 Mailboxes
Frequently asked

Good questions, quick answers.

Do I have to dig or pour concrete?
No. The slip-over post is designed to slide over a 4x4 wood post that is already in the ground, so there is no digging, no concrete, and no cure time. If you do not have a post set yet, you can put in a standard treated 4x4 first.
What size post does it fit?
It is sized for a standard 4x4 treated wood post, the most common post you will find at a hardware store. The steel sleeve drops over it and covers it from the surface plate down to the soil line. The wood post itself is not included.
How tall is it, and does it meet USPS requirements?
The post stands 43" tall, which sets an Adoorn mailbox at the USPS-required curbside height. Your installation guide covers the height and set-back requirements so your carrier can reach it easily.
What mailbox works with it?
The surface plate is pre-drilled for Adoorn post-mount mailboxes. Choose your size and color, and it bolts right on.
Is it weatherproof?
Yes. It is built from heavy-duty steel with a rust-fighting powder-coat finish, made to hold its matte black look through rain, sun, and snow.
How do I install it?
Slide the post over your existing 4x4, check it with a level, secure it, and mount your mailbox to the surface plate. Most people finish in about fifteen minutes with basic tools. Want the full walkthrough? Read How to install your new 43" Slip-Over Post.

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