Installation Help

MailCase In-Ground Post (Long Post) Installation video

Watch the following video for detailed instructions on installing the MailCase on an In-Ground Post (Long Post).

The following hardware comes included with the In-Ground Post:

  • Four (4) mounting bolts, washers, and nuts to mount the mailbox to the post.

MailCase Surface-Mount Post Installation

Included with your Surface Mount Post is the following

  • Four (4) 5/16" X 1 & 1/4" lag shields with a 1/2" outer diameter
  • Four (4) 5'16" X 2" lag bolts
  • Eight (8) 5/16" washers

You'll need a hammer drill with a 1/2" bit. These can be rented at hardware stores or equipment rental store - often by the hour. You don't need a large hammer drill, but you need to make sure it accommodates a 1/2" bit. We recommend taking one of the lag shields with you to the equipment rental store so you can hold it up and compare it to the bit to make sure the bit is the right diameter.

Put the post where you want it, and then mark the 4 holes you need to drill with a pencil. When you drill the holes for the lag shields, be careful not to drill the holes too deep. You want to drill the holes such that the top of the lag shield is flush with the surface of the concrete. Even a small hammer drill can drill holes in concrete pretty fast, so it is best to drill a little and check the depth, and drill a little more.

When all four holes are drilled, put the lag shields in each hole and then put the post in place. Put a washer over each of the lag bolts and then put the bolts through the holes in the post flange and into the lag shields. You'll be able to start twisting the bolts by hand, but you'll need a wrench to tighten them all the way in. Call us if you have any questions about Surface Mount Post Installation.

With the Surface-Mount Post we also include four mounting bolts, washers, and nuts to mount the mailbox to the post.


Click below for a copy of Installation Instructions included with your MailCase.

Installation Manual