# How to Measure for a Ceiling Fan?

Capacity fans can seem like a no-brainer.

You measure the space, run a couple of numbers, ask the interior designer to buy, right?

False!

Space alone is rarely enough to help the right ceiling fan to be selected.

It’s got a lot more.

Willing to Buy the Best ceiling fans with bright lights? But how are ceiling fans measured?

• Did you get a false ceiling on the island?
• How are you hanging your fan?
• Which windows (sliding, opening inside, opening outside) are you having?
• How ample are the cupboards?
• How do you position the lights?
• What’s more, is the ceiling fan too large for the room?

That’s a common but rookie mistake. When you buy an over-dimensional fan in a small room, it looks smaller than it does.

By purchase, a small fan in ample space, the fan’s efficiency is reduced, and the motor burns out faster.

How do you choose the best fan for your homes, then?

Let us examine how ceiling fan sizes are calculated before we get into the specifics.

## How To Measure A Ceiling Fan

### #1 The Sweep / Blade Span

You will find that the fan’s height is measured in inches when you go ceiling fan shopping. 36,48, and so on! That’s called the fan’s span or sweep.

It depends on the number of blades on the fan, two ways to calculate this number.

1. When the ceiling fan has an odd number of blades (3,5), calculate the distance between the middle and end of each edge of the fan. Multiply the number by two, and you have the span or fan size of your blade.
2. If there are equal numbers of blades (2,4), measure the distance from the extremity of one blade to the tip of the blade on the other side to find the span of the blade.

### #2 The Measurement of Your Room

Determine the square images by multiplying the length and width of the space.

Here is a table with a ballpark that displays a room’s square footage of a fan height.

• Less than 75 sq. ft. (Bathrooms, utility rooms, or porches) = 29 to 36 inches.
• 75 to 144 sq. ft. (Small bedrooms, utility rooms) = 36 to 44 inches
• 144 to 225 sq. ft. (Dining rooms, porches, small-sized kitchens) = 44 to 54 inches
• 225 to 400 sq. ft. (Master bedroom, a small garage, or an entertainment room) = 50 to 72 inches
• Anything more than 400 sq. ft. (Large sized rooms, living rooms, basements) = Multiple fan installations of 50-72 inches

Please note this is just a number approximate. There are also other variables to be considered, which we stated.

### How Many Ceiling Fans Per Room?

As stated earlier, you should consider several fan installations to ensure that the airflow is uniformly distributed throughout the region, when you are more than 400 square ft in a large space.

### Hanging The Fan

You have to determine how far the fan should hang up and the right down rod depending on the type of ceiling in the room.

For ceilings that are less than 10 feet in height, a hugger or flush style that sticks close to the ceiling without a rod.

You will usually need a down rod for ceilings over 10 feet. The down rod length will vary according to the size of the room.

### CFM

Cubic feet per minute or CFM calculate the air circulation potential of a ceiling fan, ranging between 50 and 110. The bigger the fan, the bigger the CFM. But the caution is that an increased CFM rate also means the fan is flickering fuel.

To ensure that you have an energy-efficient ceiling fan to minimize power bills in summer and keep the thermal condition down during winter, you can ideally search for a CFM rating that matches low energy consumption.

### Other Considerations

When you think about what ceiling fans you need for your space, each room would be very different since there is no situation in every room. There are a lot of things to think about.

• How strong is your ceiling?

If you think of a deck fan, you must first ensure the power of your deck! You have to make sure your ceiling can accommodate it, regardless of whether you buy a small, lightweight fan or a big light industrial fan.

In general, the manual tells what supports you need when buying a ceiling fan. In case of doubt, it is better to get a professional opinion, so ask a contractor to pop up to check your ceiling.

• Will anything obstruct the fan?

Others overlook this crucial part. Are there barriers to placing your fans in the vicinity? Hanging walls, lighting or ornaments – the list can go on. When buying a deck fan to select your down rod duration, make sure you think about this.

• Do you want a ceiling fan with lights?

This one can be overlooked very easily. When you intend to buy a ceiling fan with lights or buy a ceiling fan light kit to add an existing fan, please note that this will make your fan measurement deeper. The dimensions will vary drastically depending on your fan style and your lights, so make sure you remember it!

## Final Words:

As you can see, when you buy a ceiling fan, you can take far more account of whether it looks fine, has LED light bulbs, or wireless capacity (these are also essential, of course). It’s worth researching and calculating the size of your bedroom fan.

Hopefully, this article helped you to choose the right home-size fan. See our article on the best brands of ceiling fans for you to determine which brand is right for you.

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