Measuring for Window Blinds: The Definitive Guide
Blinds Direct is the best place to shop online for custom window blinds, but it can be difficult to know where to start when you’re making your selection. Luckily, we’ve put together this handy guide that will walk you through the measuring process so you can be sure you get precisely what you want in your new window treatments!
Recess Size - Inside Window Recess
If the blind is meant to be inside the window recess, this is a measurement you need to make. Give us the measurement of the width and the height from three different positions so we can provide you with the shortest length. If it becomes necessary, we will make necessary deductions to ensure the blind can fit into the recess of the window.
Please note that the width of the fabric you receive will be 3-4cm narrower than the actual recess size.
You may have better results when installing a blackout blind when the opening of the blind is inside the window, measuring to the width of the recess, rather than on the outside of the window opening.
With this type of blind, the headrail is included in the top edge of the blind, meaning the louvres will be shorter than the edge.
Exact Size - Outside Window Recess
Also known as pin width or finished blind width, an exact size blind is a measurement you'll need to make if the blind needs to hang outside the recess overlapping the window. There should be at least 7.5cm of overlap at each side and the top and bottom so as to keep as much external light out as possible. Get three different measurements for the width and height, the smallest of which we will keep. The most important thing is to keep providing us with more measurements.
Please be aware that this is the total width of the blind and does not include the width of the blind mechanism.
The headrail is included in the fall of the blind and so the louvres will be shorter than the fall.