No. The vertical post of all Handy Posts is designed to be installed, like a sleeve, over a 4" x 4" wooden post or a no-dig post assembly. After the vertical post is secured to the wooden post or no-dig assembly, the horizontal arm can be installed at whichever height you prefer.

Note: The height of the Handy Post Sleeve, 1, L, XL, Solo, 2, 3, 3 XL, 4L and 5 cannot be adjusted.

The wooden post can extend as little as 12" above the ground and no higher than 52" (for models Handy Post, Double, Sign and for 4), and 42" (for models Sleeve, 1, L, XL, Solo, 2, 3, 3XL, 4L and 5) to accommodate a Handy Post. The closer you get to 52" or 42" of wooden post showing prior to installing the vertical sleeve, the stronger the setup will be. By the way, if you are installing a new 4" x 4" x 72" post or a no-dig assembly, we recommend that at least 24" of it be in the ground and surround it with one bag of concrete mix.

Yes. It is recommended to use one 40-60 lb bag of concrete mix in the hole and around the wooden post during installation. Be certain that the post is LEVEL on ALL sides before letting the concrete set up.

No. The mailbox is not included. The choice of mailbox is left to you. Our complete line of Handy Post models will accommodate a single or multiple mailboxes of ANY size. Don't forget your mailbox mounting plate!

All Handy Post arms are five inches wide and will support 75 to 100 pounds of weight when properly installed. A variety of sizes and styles of mailboxes can be mounted on the arms of Handy Posts. Our Sleeve, 1, L, XL and Solo model will accommodate any size mailbox that can secure to a mailbox post. Before you decide on a Handy Post, know the mailbox you want to support and read the descriptions and dimensions of each Handy Post style on this site.

For guidance on mailboxes and sizes, see these resources offered by the US Postal Service:

Customer Mail Receptacles

Standard Mailboxes, Curbside (PDF)

To mount a mailbox onto the arm, you will need to purchase either a wooden or plastic mounting plate, or a metal universal mounting bracket. You may find these items at hardware or home improvement stores. We usually recommend using a wooden plate. It costs less and serves as well as the others. The plate or bracket is secured to the Handy Post arm with screws. We recommend that you use drywall screws here because their coarser thread grips the vinyl better. Once the board or bracket is secured to the arm, you can attach the mailbox to it. SEE ALSO on this site - Installing your Handy Post and mailbox for maximum rigidity

Yes they do. And their guidelines can be easily met when you install a Handy Post.

To see the guidelines that apply to your situation, see one of these resources:

Mailbox Guidelines | United States

Rural Mailbox Guidelines | Canada (PDF)