There is no definite answer to this question, it just depends on where you will be using it and its purpose. If you want to pair it with a table, you will want to be sure it is large enough to shadow the entire table. The same goes for any area you intend to cover. Make sure the canopy is wide enough to cover the entire space. You will also want to be sure the diameter of the pole will pass through the hole of the and be sure it will fit in the base you plan to use.