What Size American Flag For 20 Foot Pole

What Size American Flag For 20 Foot Pole

What Size American Flag For 20 Foot Pole

What Size American Flag for a 20-Foot Pole: A Comprehensive Guide


Displaying the American flag is a proud and patriotic act that symbolizes our national identity and values. Whether you’re a homeowner, business owner, or government agency, choosing the right size flag for your pole is essential for proper display etiquette and to ensure a dignified appearance. In this comprehensive guide, we’ll delve into the intricacies of flag sizing for a 20-foot pole and provide invaluable information to help you make an informed decision.

How to Determine the Correct Flag Size

The proper size of the American flag for a 20-foot pole is determined by the height of the pole and the location of the flag.

1. Flag Size for Ground-Mounted Poles:

For ground-mounted poles, the flag size is calculated using the 3:5 ratio, the official proportion of the American flag. The height of the flag should be three-fifths of the pole height. Therefore, for a 20-foot pole:

Flag Height = 3/5 x 20 feet = 12 feet
Flag Width = 12 feet x 5/3 = 20 feet

2. Flag Size for Rooftop or Building-Mounted Poles:

For rooftop or building-mounted poles, the flag size is generally larger to ensure visibility from a distance. The height of the flag should be two-thirds of the pole height:

Flag Height = 2/3 x 20 feet = 13.33 feet
Flag Width = 13.33 feet x 5/3 = 22.22 feet

Recommended American Flag Sizes for a 20-Foot Pole

Based on the calculations above, the recommended American flag sizes for a 20-foot pole are as follows:

For Ground-Mounted Poles:

  • 12′ x 20′
  • 10′ x 16′ (slightly smaller but still acceptable)

For Rooftop or Building-Mounted Poles:

  • 13.33′ x 22.22′
  • 12′ x 20′ (slightly smaller but visible from a distance)

Factors to Consider When Choosing a Flag Size

In addition to the height of the pole and location, there are other factors to consider when choosing a flag size:

  • Wind Speed: In areas with high wind speeds, a smaller flag may be more appropriate to prevent damage.
  • Visibility: The flag should be easily visible from a distance.
  • Flagpole Diameter: The flag size should be proportionate to the diameter of the flagpole.
  • Personal Preference: Ultimately, the flag size should reflect your personal preferences and the overall aesthetics of your location.

Maintaining the Flag’s Appearance

Proper maintenance is crucial to preserving the dignity and longevity of the American flag. Here are some tips to keep your flag in pristine condition:

  • Regular Washing: Wash the flag regularly with mild soap and water. Avoid using bleach or harsh chemicals.
  • Drying Properly: Dry the flag completely before storing it.
  • Proper Storage: Store the flag in a clean, dry place when not in use.
  • Replacing the Flag: Replace the flag when it becomes faded, torn, or frayed.

Frequently Asked Questions (FAQs)

Q1. Can I use a smaller flag on a 20-foot pole?

A1. Yes, you can use a slightly smaller flag, such as 10′ x 16′, for ground-mounted poles if desired. However, the flag should be large enough to be visible from a reasonable distance.

Q2. What is the standard material used for American flags?

A2. The standard material for American flags is nylon, which is durable and weather-resistant. Other materials, such as cotton, are also available but may require more care.

Q3. How often should I replace my American flag?

A3. The frequency of flag replacement depends on the weather conditions and usage. As a general rule, replace the flag every 6-12 months or when it becomes significantly damaged.

Q4. What is the proper way to dispose of an old American flag?

A4. The American flag should be disposed of respectfully and in accordance with the Flag Code. You can burn it in a dignified ceremony or contact your local VFW or American Legion for proper disposal procedures.

Q5. Where can I purchase an American flag for my 20-foot pole?

A5. American flags can be purchased from various retailers, such as hardware stores, home improvement stores, and online stores specializing in flags.


Choosing the right size American flag for a 20-foot pole is essential to ensure proper display etiquette and a dignified appearance. By following the guidelines outlined in this guide, you can confidently select the appropriate flag size and maintain its condition with pride. Remember, the American flag is a symbol of our nation’s unity and values, and it deserves to be treated with respect and honor.


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