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What Is A Width Fraction Measurement And Why Is It Needed For Custom Blinds?

What Is A Width Fraction Measurement And Why Is It Needed For Custom Blinds?

We all are aware of the functional and aesthetic values of window blinds. Their efficiency in blocking light or providing insulation creates a magnificent feel throughout the decor. But all these are possible when they are properly customized and mounted on the particular windows or doors. Before you place your favorite custom blind, it’s always recommended to measure windows accurately in order to achieve the right fit window dressing that will offer complete coverage, protecting you from outside hazards. If you have more than one window in your room, then they all may look the same in size but there will be a fraction of difference in measurement. Windows can have small variations due to framing or due to some other reasons, so measure all the windows. A small measuring mistake can lead you to get the wrong sized product. You need to be very careful while measuring them and consider the fraction of measurement too to get the accurate size of the custom window blind. But there are many who get confused when it comes to height or width fraction measurement. In this article, we will show you how to measure the window blinds and the importance of width fraction measurement.

What is a Fraction Measurement?

The fraction is nothing but a way of referring to a part of a whole, a unit which is divided into equal parts. Generally, the fraction is denoted by a pair of numbers, separated by a vertical line. The number over the line is called the numerator and the below number is called the denominator. In a blind measuring tape, you will find some marks between two big numbers and while measuring the window frame, you have to concentrate on these small measurements too. If your measuring tape doesn’t have those marks, then it may be low quality and won’t give you accurate data. Always opt for steel measure tape which is perfect for window blind measuring and double-check the widths for accuracy.

When you are measuring for window blinds width, if it’s a 16th, then take the measurement nearest to the 1/8th. For example, if you measure 11/16″, round down to 5/8″. These numbers 11/16 and 5/8 are referred to as fraction.

The width fraction is very important in getting the right fit for your window blind. If you neglect this part, then you may end up with larger than normal light leakages or gaps from the side or top of the window frame. So while calculating, make sure to pay special attention to this.

Inside Outside Mount Blinds

How to Measure the Width Fraction for Blinds?

There are two ways of measuring window blinds – inside (inside the window frame) and outside (outside or above the window frame). And according to your room needs and convenience, you can select the required mounting method.

Measuring Width for Inside Mounting:

Width fractions are mainly required when you are planning to install your custom blind inside the frame. To get the exact width, measure the inside edge of the window frame in 3 places which are top, middle, and bottom. Make all measurements to the nearest 1/8th inch and if required round down the width. For example, if the smallest measurement is 26 9/16 inch, then round down to 26 1/2. Here the fraction is ½ inch. Always take the smallest width measurements and note it down somewhere. It may sound obvious but you need to include the fractions in your measurements for inside mounts to get the exact fit – if you just give whole numbers the blinds will not be sized properly. This is why it is highly recommended to go for custom blinds instead of ready-made ones that come in preset sizes.

Measuring Width for Outside Mounting:

Outside mounting offers complete coverage. And to achieve this, measure the window frame from left to right depending on how wide you want the blind to be. For example, if the window opening is 34 inches wide, then you can order 38-inch wide window blinds. The concept of width fraction measurement is not required for this style of mounting because you can oversize the shade however you desire.

Hope this article helps you to get a better idea of a width fraction measurement. If you still have doubts, feel free to take help from the experts, and get your window frames measured professionally to avoid small mistakes!