You need to consider how much shade you’d really like for your patio, and how the sun will change direction and intensity through the day.
- Do you want heavy shade across the entirety of your space?
- Would you like partial shade during the morning and heavy shade in the afternoon?
- How will the temperature affect how much shade your patrons need during daylight hours?
Perhaps you want to have one umbrella for each table on your patio. You should be asking, "what size table can my umbrella accommodate? How much shade will my umbrella make? Will it cover this table and all of the chairs around it?" Use the comprehensive chart below to determine what size umbrella you need to cover the desired size of tables and chairs on your patio. Or, you can choose to shade a large area rather than separate tables. In that case, you should be asking "how many umbrellas do I need to shade my patio space?" With the information in the table and a little simple math, you can choose the correct number of umbrellas for your square footage.
Example Situation: "I want to buy 6 1/2 ft. umbrellas to shade as much of my 500 sq. ft. patio as possible. How many umbrellas should I buy?" 500 sq. ft / 40 sq. ft. = about 12 umbrellas for full shade