How to Measure

If you want perfect-fitting blinds for your windows or doors, then you need to make sure that you measure them correctly.

Correct measurements are critical to getting the right fit for your blinds, so it’s best to make them as accurate as possible.

What You’ll Need

You don’t need fancy tools and instruments to make accurate measurements, but you will need a few decent tools for the job:

Things to Remember Before Starting

  1. To get the most accurate measurements, it’s important that you measure your window and doors exactly. DO NOT include any additional allowances in your measurements – our factory will make the necessary allowances for you.
  2. Measure to the nearest millimetre.
  3. Always take your time when measuring. Rushing can lead to mistakes or wrong measurements.
  4. Make sure you’re measuring the right parts of your windows or doors. For example, measurements for inside-mounted blinds can differ from outside-mounted blinds even if you’re measuring the same window.
  5. Always double check your measurements. Don’t finalise a measurement unless you’re sure it’s correct.

Roller Blinds

Inside Mount

Diagram explaining how to measure for roller blinds to be installed within the window fram

Width: Measure the width from left to right at the top of the recess. This measurement must be correct to the nearest millimetre. Ensure that the window is the same width in all areas (please refer to the illustration).

Drop: Measure the drop of the window from top to bottom. Ensure that this measurement is exact to the nearest millimetre.

Outside Mount

Diagram explaining how to measure for roller blinds to be installed outside of the window frame

Width: Measure the width from right to left at the top of the window frame.

Drop: Measure the drop of the window from top to bottom. You can choose how long past the bottom of the window frame you would like your blinds to go. Ensure that your measurements are exact to the nearest millimetre.

Note: If you have no architraves, add 20mm to 75mm on each side of the window frame to minimise any light gaps.

Sliding Doors Inside Mount

Diagram explaining how to measure the inside of a door

To get the best fit, always consider any obstructions like door handles and bars, as well as the depth of the door frame.

Width: Measure the width from left to right of the door frame, making sure it’s correct to the nearest millimetre.

Drop: Measure the drop of the sliding door from top to bottom as per the illustration.

Sliding Doors Outside Mount

Diagram explaining how to measure the outside of a door

Always consider door handles, bars or any other obstructions that are part of your door. You should also consider the depth of your door frame.

Width: Measure the width from left to right of the outside of the door frame.

Drop: Measure the drop of the sliding door from the outside of the door frame.

Venetian Blinds & Roman Blinds

Inside Mount

Width: Measure the width from left to right at the top of the recess. Ensure that the window is the same width in all areas (please refer to the illustration).

Drop: Measure the drop of the window from top to bottom. Ensure that this measurement is exact to the nearest millimetre.

Outside Mount

Width: Measure the width from left to right at the top of the window frame. Make sure that it is consistent throughout the entire length of the window.

Drop: Measure the drop of the window from top to bottom. For Roman blinds, you can choose to go past the bottom of your window frame if that style suits your preferences.

Note: If your window has no architraves, add 20mm to 75mm on each side of your window frame to minimise light gaps.

Sliding Doors Inside Mount

Diagram explaining how to measure the inside of a door

When measuring sliding doors, always consider any door handles, bars and the depth of your door frame.

Width: Measure the width from left to right of your door frame, making sure that it is even throughout the length of the window.

Drop: Measure the drop of the sliding door from top to bottom.

Sliding Doors Outside Mount

Diagram explaining how to measure the outside of a door

Consider door handles, bars and the depth of the door frame before measuring it.

Width: Measure the width from left to right of the outside of the door frame.

Drop: Measure the drop of the sliding door from the outside of your door frame, going from top to bottom.

Need More Help?

If you want to know more about how to measure your doors or windows properly, feel free to get in touch with our team by calling 1300 884 749 or sending us a message.

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