Measuring a square umbrella canopy

Your square umbrella will have 4 or 8 ribs (4 are usually found on small, bistro-type umbrellas)

Only measure where ribs are positioned, so on a 4-rib square umbrella, measuring B1 can be omitted since there are no short ribs.

You will need to open your umbrella so the cover is taut.

• Measure Dimension A1, the overall length of one side

• Then, measure B and B1, from tip to the very center of the upper hub - this is the point where the finial is fastened through the cover

• Measure the small opening C - this is often just a brass grommet, but it could be as large as 2 to 3 inches. It is the opening allowed for the finial to pass through the fabric.

• Finally, measure D, the size of the umbrella rib, as illustrated below.

Mark down the measurements and send to us using our Quote Request link to the left.

If you no longer have the cover, we do not neccessaily need the A1 measurement to calculate the size - we can reconstruct it by using the B and B1 measurements alone.