The best ceiling fan for a covered patio is either a UL damp-rated or wet-rated option. Indoor or dry-rated ceiling fans should never be used in a covered patio. The ideal blade span for a ceiling fan depends on the size of the patio. A 29” ceiling fan is ideal for a 64 square foot patio, and 36” can cover a 75 square foot patio. If you want to install multiple ceiling fans in the same patio, put up to 8 feet of space between them. ^{ceilingfantips.com 1 2 3}