As always make sure you properly.
Ceiling fan blade length room size.
Multiply this number by 2 and you have your blade span or fan size.
Measure the room s length and width then multiply them together.
If the room is 75 square feet or smaller your ceiling fan should be 36 inches or less in diameter.
More importantly though you ll need to choose the right size ceiling fan according to the size of the room.
The recommended blade span for large room ceiling fans ranges from 60 to 64.
A decade ago ceiling fans were pretty much only available in 42 48 and 52.
The sizes and associated blade spans are shown below in the table.
Ceiling fan size guide.
Energy star makes the following recommendations for ceiling fan diameter.
While the table is a general guide for ceiling fan sizing based on your room s dimensions other factors for determining the best ceiling fan size for your room include the room type and layout.
Step 1 room size.
To choose the right size ceiling fan for a room you ll need to know the square footage of the room.
These large room ceiling fans are best in rooms 17 x 17 to 20 x 20.
If the ceiling fan has an even number of blades 2 4 measure the distance from the tip of one blade to the tip of the blade on the opposite side to find the blade span.
The size of the room determines the overall length of each fan blade.
Ceiling fan sizes by room.
Fans that measure 52 inches are the most commonly used.
Next the measurement of your room.
To get the most out of a ceiling fan you must first select the right size.
For rooms larger than 20 x 20 multiple standard fans or very large room fans may be the best option.
Most ceiling fan sizes are also determined by the room they will be placed in.
Rooms 225 sq ft 400 sq ft 50 in 54 in.
Use the ceiling fan size chart below to get the best idea of what size you need.
For example a room that measures 8 feet by 8 feet is 64 square feet in size.
The latest trend in ceiling fans is big.
If the room is 75 square feet or smaller select a blade span of 29 to 36 inches.
Consult energy star s fan size chart to determine the suitable blade span for your room.
To find the square foot of a room simply multiply length times width.
If the room is larger than 400 square feet then two fans should be used for maximum performance.
Rooms up to 75 sq ft 29 in 36 in.
For example a kitchen ceiling fan will be much smaller in blade diameter and length than a ceiling fan for the living room.
Rooms 76 sq ft 144 sq ft 36 in 42 in.