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What Size Flag to Use

 

The standard American flag dimensions should be between one-quarter and one-third the height of the flagpole. Using the one-quarter rule, you would need a 3 ft. by 5 ft. flag size for a 20 ft. flagpole. Two major factors in determining what flag dimensions you should use for your in-ground flagpole are material and wind exposure.

For material, cotton fabric is very durable, but fades fast under extreme sun exposure. A budget-friendly option is the 1-ply polyester, but if your flag is wearing out every 6 months or less, you will need to switch to a tougher material. 2-ply polyester flags are perfect for high winds or extreme outdoor conditions. Nylon flags are the most popular for their fair price, strength, and only take a light wind to lift most flag sizes.

Download our standard flag size chart in a handy pdf.

For information regarding the durability of outdoor flags, check out our article, “How Long will a Flag Last?” To determine the amount of wind your flag can be exposed to, see our Wind Speed Chart for American flag sizes only. Of course, the unique location and surroundings -- like wind tunnels, ocean breezes, and landscapes -- also influence the right choice of flags for flag poles.

What Size Flag Do I Need to Purchase for My Flagpole?

Flagpole Style
 Height (length) of Pole Flag Size
House Mounted 5 ft. 2-1/2 ft. x 4 ft.
House Mounted 6 ft. to 8 ft. 3 ft. x 5 ft.
In Ground 8 ft. 3 ft. x 5 ft.
In Ground 10 ft. 3 ft. x 5 ft.
In Ground 15 ft. / 18 ft. 3 ft. x 5 ft.
In Ground 20 ft. 3 ft. x 5 ft. or 4 ft. x 6 ft.
In Ground 25 ft. 4 ft. x 6 ft., 5 ft. x 8 ft. or 6 ft. x 10 ft.
In Ground 30 ft. 5 ft. x 8 ft. or 6 ft. x 10 ft.
In Ground 40 ft. 6 ft. x 10 ft. or 8 ft. x 12 ft.
In Ground 50 ft. 8 ft. x 12 ft. or 10 ft. x 15 ft.
In Ground 60 ft. 10 ft. x 15 ft. or 12 ft. x 18 ft.
In Ground 70 ft. 12 ft. x 18 ft. or 15 ft. x 25 ft.
In Ground 80 ft. 12 ft. x 18 ft. or 20 ft. x 30 ft.
In Ground 90 ft. 15 ft. x 25 ft. or 20 ft. x 30 ft.
In Ground 100 ft. 15 ft. x 25 ft. or 20 ft. x 38 ft.
In Ground 120 ft. 20 ft. x 38 ft.
In Ground 150 ft. 30 ft. x 50 ft.
In Ground 200 ft. + 30 ft. x 60 ft.

 

 

 

 

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