How to Measure Patio Umbrella Size

Umbrellas help keep your courtyard and patio tables cooler, providing shade from the sun. They can also help provide shade for your chair cushions to prevent the sun from fading them. You need to know what size of umbrella you need to cover your desired area before you buy an umbrella. You can measure your current umbrella size if you are looking to replace the one you have. This is same step i took when replacing my patio in St. Louis and it works great.

How to measure patio umbrellas

The size of patio umbrella is determined in width and not height. To find the correct measurements, measure the distance between the upper arm of the rib and the lower arm of the rib. Then multiply by two, which will give the right size. You can also follow the steps below:

  • Open the umbrella so that it is fully extended.
  • Measure the top of your umbrella along one of the arms of the ribs. Use a tape to measure the distance from the top center to the outer edge.
  • Multiply that number by half. This will give you the right size of your umbrella. Remember that umbrellas are not measured by height but width.
  • Take another measurement from the base of the umbrella pole to the crank mechanism. This will give you the exact measurement of the crankshaft height. You should know this measurement if you are measuring for a patio table.

There are hundreds of umbrella manufacturers all over the world. Most umbrella manufacturers build their own individual umbrella specifications, which means that not all umbrellas are created equal or constructed to the same length, diameter and thickness. Most umbrellas are very wide, reaching to several inches depending on the manufacturer. Example. A true 9 inch umbrella span would be 108 inches (12 “x 9” = 109 “) However, the rib arms can reach several centimeters plus or minus, making the measurement of any umbrella greater or less than the actual 109 inches.