Does the mailbox have to meet certain requirements?
Yes they do. Mailboxes have to meet the standards set by the United States Postal Service and the Postmaster General. In addition, if you live in an neighborhood with a homeowners association (HOA), then your mailbox may be subject to additional requirements that have to be met.
What is the best size for address numbers?
We recommend at least 4 inch (10.16 cm) or larger address numbers, that are reflective, and and contrast in color with surface that the numbers are attached to. This allows for easier identification of your home at night.