The size of the patio umbrella
You need to choose a suitable patio umbrella according to the size of your patio and the area you want to cover. Generally speaking, the diameter of the patio umbrella should be at least 60 cm larger than your table or chair, to ensure enough shade. If you have a large patio, you can choose multiple small patio umbrellas, or one large patio umbrella, but be careful not to block the view or cause congestion.