Flagpole Height vs. Flag Size

The National Association of Architectural Metal Manufacturers (NAAMM) provides criteria for determining the appropriate flag size based on the height of the flagpole.

This guidance is useful when selecting a new flagpole or flag and you have only one of these measurements.

In Ground Flagpoles

Mounting Height Flag Size
15' 3' x 5'
20' 4' x 6'
25' 5' x 8'
30' 6' x 10'
35' 6' x 10'
40' 8' x 12'
45' 8' x 12'
50' 10' x 15'
60' 12' x 18'
70' 12' x 18'
80' 15' x 25'

Vertical Wall Mount Flagpoles

Mounting Height Flag Size
12' to 15' 4' x 6'
20' to 25' 5' x 8'
30' to 35' 6' x 10'
40' to 45' 8' x 12'

Outrigger Wall Mount Flagpoles

Length Flag Size
8' 3' x 5'
10' to 12' 4' x 6'
13' to 16' 5' x 8'
17' to 23' 6' x 10'