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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.

  • If you know the flagpole height: Use this information to determine the maximum flag size suitable for the pole.
  • If you know the flag size: Use this to determine the required flagpole height.

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

Ground Set
Flagpole 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 Mounted
Flagpole 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 Mounted
Flagpole Height Flag Size
8' 3' x 5'
10' to 12' 4' x 6'
13' to 16' 5' x 8'
17' to 23' 6' x 10'
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