Salsbury Industries 4850 Heavy Duty Rural Mailboxes Standard Mailbox Post - Manual (Page 15)

SALSBURY INDUSTRIES
1010 East 62
nd
Street, Los Angeles, CA 90001-1598
Phone: 1-800-624-5269 Int’l Phone: 323-846-6700
Fax: 1-800-624-5299 Int’l Fax: 323-846-6800
www.mailboxes.com engineering @ mailboxes.com
Installation instructions are provided as general guidelines. It is advised that a professional installer be consulted. Salsbury Industries assumes no product assembly or installation liability.
Copyright © 2011 Salsbury Industries. All rights reserved. (Rev. 01, 11/1/11)
Heavy Duty Rural Mailboxes – 4850
In-Ground Mounted Mailbox Post Installation Instructions
U.S.P.S. APPROVED
Installing the In-Ground Mounted Mailbox Post
When you install a curbside or rural mailbox, make sure that it is
easily accessible to the mail carrier. By regulation it should be 41” to
45” from the ground or street surface up to the inside floor of the
mailbox. The door should be set back 6” to 8” back from the front
face of the curb or the road edge. However, you should check with
your local postmaster to ensure that the mailbox is installed
according to local regulations.
To install the in-ground mounted mailbox post, begin by digging a
hole for the concrete footing and then prepare the concrete. The top
surface of the footing should be about 12” by 18”. See the illustration
for the relative position of the rectangular footing to the post and
mailbox. The concrete should extend into the ground 24” or greater if
your local frost line is deeper. Installing the concrete below the frost
line will prevent movement during ground freezing and thawing. The
bottom of the hole for the concrete footing should be filled with a
depth of about 6” of gravel to promote drainage under the post. The
top of the footing should be sloped for water runoff.
When digging the hole for the footing, be careful to not puncture
water, sewer, or gas lines.
After digging the hole, set the post in the hole and fill the hole with
the prepared concrete mix. Prod the mix with a stick while filling to
reduce any air pockets. If you want to conceal the concrete, pour it
to within a few inches of the top of the hole and cover with soil after
the concrete has set. Use a carpenter’s level on the sides of the post
to ensure that the post is aligned vertically. Periodically check the
vertical alignment of the post as the concrete is curing.