Measure the room’s length and width in feet
Multiply length by width to get the room’s square footage
Use the square footage to choose fan blade span
Up to 75 sq ft: 29–36 inch fan
76–144 sq ft: 36–42 inch fan
145–225 sq ft: 44–50 inch fan
226–400 sq ft: 50–54 inch fan
Over 400 sq ft: 54 inches or larger, or multiple fans
Check ceiling height before selecting fan size
Use a downrod for high ceilings
Use a low-profile fan for low ceilings
Leave at least 18 inches of clearance from walls
Leave at least 7 feet of clearance from the floor
Match fan size to room shape and layout
Consider larger fan size for open-concept spaces
Consider smaller fan size for narrow rooms
Verify manufacturer recommendations for the specific model