Free tool

Patio umbrella size calculator

Enter your table. You get the umbrella size that shades everyone at it, round or rectangular, and the base to hold it down.

9 ft round umbrella

That shades the chairs too. 8 ft is the least that covers the table: its diameter plus 2 feet on every side.

  • BaseAt least 50 pounds; 80 to 100 is better
  • VentAt 9 feet and up, choose a canopy with a wind vent

See it over your own table

Numbers say it shades the table. A picture says whether a market umbrella or a cantilever suits the patio, and which color. Photograph the patio, add the umbrella from any store, and see it in place.

Try it free How the patio visualizer works

The rules behind the numbers

  • Size: the canopy should reach about 2 feet past the table edge on every side, so a round table's diameter plus about 4 feet [1].
  • Rectangular tables: a round umbrella has to reach the corners, so it's sized on the diagonal. A 54 by 32 inch table takes about 9 to 9.5 feet round, or a rectangular umbrella of about 6.5 by 9 feet [1].
  • Chairs: they pull out another 6 to 8 inches past the table, so err toward the bigger size [1].
  • Base: at least 50 pounds for a 9 foot umbrella, with 80 to 100 recommended, and 80 to 100 at least from 11 feet up [1]. On anything 9 feet or bigger, a wind vent is close to required [1].

Square tables are sized on the diagonal too: a 40 inch square table takes about a 9 foot round umbrella [1].

Sources

  1. What size patio umbrella do you need? It depends on the table's shape, not just the seats, Patio Productions. Read November 4, 2026.

Questions

What size umbrella for a 48 inch round table?

9 feet. 8 feet covers the table itself, the 4 foot top plus 2 feet each side, and the extra foot shades the chairs.

What size umbrella for a 60 inch round table?

10 to 11 feet, and 11 feet for a 72 inch table.

What size umbrella for a 36 or 42 inch table?

About 7 to 8 feet, or 8 to 8.5 feet if you want the chairs in the shade too.

What size umbrella for a rectangular table?

Size a round umbrella on the table's diagonal plus 4 feet, so it covers the corners. A 54 by 32 inch table needs about 9 to 9.5 feet round, or a rectangular umbrella of about 6.5 by 9 feet. A 40 inch square table needs about 9 feet.

How heavy should an umbrella base be?

For a 9 foot umbrella, at least 50 pounds, and 80 to 100 is better. At 11 feet and up, 80 to 100 pounds at least, or the cantilever's own cross base.

When should I close the umbrella?

In a moderate breeze, about 13 to 18 miles per hour, close it or lower it.

Will it look right on my patio?

The numbers say it fits. To see an umbrella from any store over your own table, take a photo of the patio and add it: Renderior shows it in place, with a link to buy it.

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See the umbrella over your table before you buy it.

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