If it has an even number of blades measure your fan from the tip of one blade to the tip of the blade directly opposite it.
How to determine ceiling fan size for a room.
Use a standard measuring tape.
See the ceiling fan sizes table to understand.
Begin to determine your needed ceiling fan size by calculating the square footage of the room.
Then measure the width of the room using the same method.
The total you receive from this calculation is the size of your room in square feet.
Sizing your ceiling fan based on room size.
Measure the length and width of your room then simply multiply the measurements together.
To determine the square footage of the room or the area multiply the length of the room in feet by the width of the room in feet.
It s easy to measure a rectangular room to determine its square footage.
The size of a ceiling fan is determined by the size of the room or the area which you are looking to cool.
To be on the safe side the max length between fan and ceiling should be 3 meters 10 feet and it should not be installed below 2 75 meters 9 feet.
If it has an odd.
Calculate the full blade span.
For example if your room is 8 by 8 the square footage is 64 square feet.
Because most ceiling fans on the market are in this size category you have your greatest range of style options with this fan size.
Most ceiling fans are between 42 and 48 inches in size and that they work well for spaces from 75 to 175 square feet.
This will give you the square footage of your room.
Count the number of blades some fans have three and some have four blades.
Ceiling fan should be installed through hook or clamp and 2 nut bolts of 12 7mm can be used to fix the rod in the hook clamp.
Extend a tape measure from one wall to the opposite wall to determine the length.