When you’re selecting the placement and height of a light up address sign, you’ll want to make sure that it’s in an ideal place for the average person to see it clearly. As a rule of thumb, that means that you’ll want to place your sign so that the numbers are between four and a half and five and a half feet off the ground. This will allow most people to be able to see the sign and read it easily without having to manipulate their necks or straight their eyes too much.