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Wind Load Map: Wind Speed Chart for Flagpoles

wind load chart for flagpoles in the USA

What is Flagpole Wind Load?

Wind load is the force, in pounds per square foot, that the wind places on the exterior of a flag and flagpole when installed.

Safe flagpole design requires knowledge of the loads to which they will be subjected. A number of factors are taken into account when wind load is calculated for a flagpole.

Every pole we sell has it's listed wind rating on its product page, so you'll know what it is capable of. Here are some wind speeds that our Aluminum poles are tested at:

Calculating Flagpole Wind Load Capacity

Maximum wind speeds in your area depend on many factors, including geographic location, whether or not it is in the center of a large city, a small town’s outskirts, seashore, at ground level or on the roof of a high building, etc..

Generally, wind speeds are higher along coastal areas than they are inland. They are also higher in open country rather than in the center of cities.

Wind speed also increases as height above ground increases. Wind exerts a force on the pole as well as the flag, thus both loads must be added to determine total load.

Note: Flagpoles and their associated wind speeds listed assume ten percent of the overall length of the flagpole is buried at or near ground level per industry recommendations. Special engineering may be required for other applications such as wall or roof mounted flagpoles.

In these cases please contact us for help We’d be happy to help find a solution.

How Much Wind Can My Flagpole Take?

The flagpole wind load map above is our general guide for typical wind patterns throughout the United States. Based on where you are located, you should select a flagpole that can handle the anticipated wind load.

You can also contact local weather authorities for local wind averages to find accurate data for your specific area!

It's important to select a flagpole that can support the largest flag intended to be flown in the highest wind speed it may face. Flag sizes do not represent a warranty that the flag size can be safely flown in all wind speeds.

Personal injury, flagpole damage or property damage can occur when flying oversized flags and banners or flying flags in higher winds than recommended.


Flagpole DetailsMax Wind Speed with Nylon FlagMax Wind Speed with No Flag
15’ External Single Stationary TruckUp to 113 mphUp to 149 mph
20’ External Single Stationary TruckUp to 182 mphUp to 287 mph
25’ External Single Stationary TruckUp to 124 mphUp to 209 mph
30’ External Single Stationary TruckUp to 94 mphUp to 131 mph
35’ External Single Stationary TruckUp to 79 mphUp to 95 mph
20’ External Single Revolving TruckUp to 229 mphUp to 328 mph
25’ External Single Revolving TruckUp to 168 mphUp to 253 mph
30’ External Single Revolving TruckUp to 122 mphUp to 197 mph
35’ External Single Revolving TruckUp to 127 mphUp to 187 mph
40’ External Single Revolving TruckUp to 122 mphUp to 177 mph
45’ External Single Revolving TruckUp to 102 mphUp to 144 mph
50’ External Single Revolving TruckUp to 118 mphUp to 164 mph
55’ External Single Revolving TruckUp to 102 mphUp to 139 mph
60’ External Single Revolving TruckUp to 137 mphUp to 187 mph
65’ External Single Revolving TruckUp to 122 mphUp to 165 mph
70’ External Single Revolving TruckUp to 109 mphUp to 145 mph
75’ External Single Revolving TruckUp to 126 mphUp to 161 mph
80’ External Single Revolving TruckUp to 107 mphUp to 144 mph
25’ Extreme External Single Revolving TruckUp to 197 mphUp to 287 mph
30’ Extreme External Single Revolving TruckUp to 157 mphUp to 235 mph
35’ Extreme External Single Revolving TruckUp to 181 mphUp to 249 mph
40’ Extreme External Single Revolving TruckUp to 146 mphUp to 207 mph
45 Extreme External Single Revolving TruckUp to 168 mphUp to 226 mph
50’ Extreme External Single Revolving TruckUp to 179 mphUp to 242 mph
60’ Extreme External Single Revolving TruckUp to 171 mphUp to 228 mph
70’ Extreme External Single Revolving TruckUp to 139 mphUp to 181 mph
20’ Internal Cam CleatUp to 151 mphUp to 272 mph
25’ Internal Cam CleatUp to 144 mphUp to 240 mph
30’ Internal Cam CleatUp to 102 mphUp to 170 mph
35’ Internal Cam CleatUp to 107 mphUp to 167 mph
40’ Internal Cam CleatUp to 107 mphUp to 161 mph
20’ Internal Winch SystemUp to 174 mphUp to 280 mph
25’ Internal Winch SystemUp to 112 mphUp to 192 mph
30’ Internal Winch SystemUp to 113 mphUp to 188 mph
35’ Internal Winch SystemUp to 119 mphUp to 179 mph
40’ Internal Winch SystemUp to 141 mphUp to 204 mph
45’ Internal Winch SystemUp to 118 mphUp to 167 mph
50’ Internal Winch SystemUp to 115 mphUp to 165 mph
60’ Internal Winch SystemUp to 117 mphUp to 166 mph
70’ Internal Winch SystemUp to 90 mphUp to 122 mph
80’ Internal Winch SystemUp to 89 mphUp to 121 mph
25’ Extreme Internal Winch SystemUp to 190 mphUp to 294 mph
30’ Extreme Internal Winch SystemUp to 178 mphUp to 269 mph
40’ Extreme Internal Winch SystemUp to 166 mphUp to 234 mph
50’ Extreme Internal Winch SystemUp to 158 mphUp to 222 mph
60’ Extreme Internal Winch SystemUp to 149 mphUp to 205 mph

Gettysburg Flag Works Flagpoles

We are one of the very few licensed and trusted flagpole distribution companies in the country. With that, we love to create flagpole resources that give you everything you need to know before making this big purchase. Learn more about our flagpole options with the flagpole portfolio page and our How to video library to learn more!

Shop Our Selection of Sturdy, High Quality Outdoor Flagpoles

We carry a wide variety of flagpoles that can handle a variety of wind loads. Whether you’re looking for a residential flagpole or a commercial flagpole, we likely have an option that will work for you and the flag you’re intending to fly!

You can browse our complete selection of inground flagpoles here.

Need help figuring out which flagpole is right for you? Give us a call at 1-888-697-3524 or send us a message online and we can help you find and order the right flagpole.

Have questions? Need assistance understanding the flagpole wind load chart or finding the flagpole that’s right for you? We can help with that! Our team of flag experts have extensive knowledge related to outdoor flagpoles. We can point you in the right direction and advise you on which flagpole will be best and safest for your specific scenario. Just contact us online or give us a call at 1-888-697-3524 and we’d be happy to assist you!