Flag Sizing Chart

How to Choose the Right Size Flag for your Flagpole

Determining Flag Size

The length of the flag should be at least one quarter the height of the pole. For example, a 40-foot pole requires a 6'x10' or larger flag. This guide applies to poles 20 feet tall and larger.

Most residential flags are 3'x5' or 4'x6'.

Most small industrial and commercial buildings fly either a 5'x8' or 6'x10' flag.

Major industrial, municipal and government buildings require 8' x 12' or larger flags. However, the size of the pole ultimately restricts the maximum allowable flag size.

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 Flagpole Length

 Flag Size

6' House Mounted 3'x5'
 20'  3'x5', 4'x6'
 25'  4'x6', 5'x8'
 30' - 35'  5'x8', 6'x10'
 40' - 45'  6'x10' - 8'x12'
 50'  8'x12' - 10'x15'
 60' - 65'  10'x15' - 10'x19'
 70' - 80'  10'x19' - 12'x18'
 90' - 100'  20'x38' - 30'x50'