How To Measure, Install And Maintain Roller Window Blinds?

Blinds – how to measure


There are many important points to keep in mind when measuring new rolling doors. You will find a quick guide below to help you. First, make sure you have pencils, paper and tape measures (preferably metal).

What to measure?

Always measured in millimeters (mm) because most shading suppliers require dimensions in millimeters.

Where is it measured?

In the normal window area, there are 2 possible positions to install the blinds, called facades or window openings. The roller blind can be placed on the surface of the sash or on the wall or on the top of the window. This gives you complete control over the position of the awning.

For leisure measures:

Make sure you have enough depth to climb into the sash area. 75mm should be good; a small result will make the awning out of the niche. If the height is less than 75 mm, it may be worth considering installing the curtains outside the window as a face adjustment.

  • Measure the width of the groove from one wall to the other. This is the supported location. Be sure to measure the width of Zone 3 to ensure that the area has the same width (or very similar), while the walls do not have protrusions that interfere with the operation of the awning.
  • Write down the shortest measurement.
  • Remove 10 mm on each side: If there are variants on the wall, this will give you some flexibility and you will ensure that your blinds are not damaged. If you want to completely block the light, we recommend that you place the awning on the surface of the window.
  • Measure the drop by measuring down from the top of the hole.
  • Write down the shortest measurement.


One bezel is equipped with a number of roller blinds, which means you can limit the movement of the bezel to ensure it extends down to the window sill. The blind chain is operated with one hand and the other hand presses a ball in the chain between the thumb and forefinger to calculate when it reaches the top of the mechanism. After completing the desired length, clip the blind chain cap to the chain.

For facial measurements:

  • Measure the exact width of the person you want to be blind. As an indication, the added sash overlaps between 50 and 100 mm, which will help reduce the gap on the sides of the louver, providing better light control and more privacy.
  • Write down the measured value.
  • Measure the fall from the top where you want to drop the awning.
  • Write down the measured value.


  • Make sure that there is 10 mm on each side of the die width measurement for all sizes.
  • Measure at least twice to make sure there are no errors.
  • Determine where you want the controls to be easily accessible.
  • To ensure a good fit, it is important to pay attention to any obstacles, such as window handles, when measuring.
  • For full length windows, we recommend about 20 mm from the ground. This will give you plenty of room for the blind to have enough space to work overtime.
  • For facial installations, be sure to raise the sun visor up to 100-150 mm above the frame to allow the roller mechanism to clean the window as much as possible when lifting. This will allow more light in the room and is important when the blinds (roller blinds online) are in the door to allow room.
  • Determine if the shade is in the reel or under the reel, ie whether the fabric is unfolded from the front of the tube or from the back. The fabric that rolls behind is usually a standard roll.

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