For adequate air circulation the fan blades should hang 8 inches or more from the ceiling.
Ceiling fan size recommendations.
Generally you should go for a 42 inch blade for 100 square feet or less up to 50 inches for rooms between 100 and 150 square feet 52 to 60 inch blades for 150 to 300 square foot rooms or a fan.
400 square feet or less work best with medium ceiling fans that range from 48 inches to 54 inches.
Conversely spaces in the home with limited ceiling to floor height think bedrooms offices breakfast nooks etc require a low profile or flushmount ceiling fan.
You will want to check your fan to ensure that its cfm rating is anywhere between 1 600 and 4 500.
Energy star makes the following recommendations for ceiling fan diameter.
Length of longest wall is 12 to 15 feet your fan width or blade span should be 40 to 48 inches length of longest wall is more than 15 feet your fan width or blade span should be 52 inches or more.
For safety the bottom of the fan needs to be at least 7 feet above the floor.
Rooms up to 75 sq ft 29 in 36 in rooms 76 sq ft 144 sq ft 36 in 42 in rooms 144 sq ft 225 sq ft 44 in rooms 225 sq ft 400 sq ft 50 in 54 in.
If you have a regular sized bedroom of 144 to 225 square feet then a medium ceiling fan with a blade span of 44 to 50 inches will be a great fit.
Medium diameter fan sizes are ideal of living rooms bedrooms and kitchens.
Most fan bodies including mounting hardware are 8 to 12 inches.
For these we recommend 50 to 58 ceiling fans.
Leave at least 2 or 3 feet of space between the end of the fan blade to the closest wall to determine the largest size fan you can put in a room 3 feet for ceilings 9 feet or less 2 feet for higher ceilings.
Standard rooms vary from 10 x 10 to 16 x 16 100 to 256 sq ft and include large bedrooms living rooms and large kitchens.
40 to 48 ceiling fans fans for standard rooms.
Ceiling fan mounting type in addition to ceiling fan sizes the mounting type you choose is extremely important.
In terms of sizing your ceiling fan for your bedroom there are two common size options for bedrooms.
Would we then recommend a 72 fan for this room.
You will want your new ceiling fan to hang between 8 and 9 above the floor regardless of ceiling height.
This includes large bathrooms large bedrooms medium sized living rooms and kitchens.