We’re all finding ourselves with a lot of free time on our hands at home – the perfect opportunity to give your house some TLC. The best place to start, if we do say so ourselves, is with your windows. And no, we’re not talking about washing your window panes (although, you can add that to your to-do list), we mean giving your decor a refresh with new window blind installation. Blinds are a smart, modern alternative to curtains, and while you may not be able to go out and buy your blinds now, you can still browse our catalogue and take measurements. That way, when life returns to normal, you can head straight out and pick out your Decorland ready-made blinds or custom order. And, if you buy from us, you should experience a hassle-free blind installation too. 

Measuring your windows: The first step to a smooth blinds installation

Installing your blinds yourself is not nearly as daunting as it sounds. The key to ensuring the right fit lies in the measurements. Once you’ve got those right, all you have to do is pick your custom or ready-made Decorland blinds, and then take them home to install. Simple. To help you nail your measurements, we’ve put together a practical guide to measuring for the perfect fit. Stick with us and you’ll never misjudge your window size again.

Window Blinds with green plants behind
Selective focus point on Blinds window decoration in livingroom interior – Vintage Light Filter

How to measure your windows for blinds:

There are a few essentials you need to have and know before you begin to take window measurements for your blinds installation:

  1. Use a metal measuring tape

To eliminate unnecessary errors as much as possible, always use a metal measuring tape when taking your window measurements. Plastic and cloth tapes may stretch when you are pulling them from one side to the other, giving an incorrect measurement. Additionally, if you have some slack in your tape, you’ll also end up with the wrong dimension.

  1. Measure in millimetres (mm)

Most industries take their measurements in millimetres, and you should too when preparing to measure your windows for any new blind installation. Measuring to the last millimetre ensures you supply as near as exact measurements when getting a quote for your custom or ready-made blinds.

  1. Be exact

Being as accurate as possible is vital when measuring your windows, especially if you’re installing inside-mounted blinds. While a couple of millimetres may seem trivial, they can make all the difference between a good or bad fit. 

handyman measuring with a metal measuring tape

Measuring for inside-mounted blinds

If you want to position your blinds within the window frame, you will need to measure from the inside edge of the frame. Inside-mounted blinds provide a neat, clean-cut look and help highlight a beautiful window frame.

blind installation guide: how to measure a window frame for blinds (inside).

Your measurements should include:

  1. Width (A, B, C)

Measure the width of your window in three places – top, middle and bottom. You want to use the exact width of your window, no more, no less. Whichever reading provides the narrowest width, use that. Avoid making any deductions of your own. Leave that to the professionals.

  1. Height (D, E, F)

Similar to the width, you will need to take three measurements for the height – left side, middle, and right side. Select the shortest measurement.

  1. Depth

To ensure your window provides an ample recess for the headrail of your blinds, always measure the depth too. That way, our consultants can advise you on the best blinds for your space.

Measuring for outside-mounted blinds

Outside-mounted blinds might be necessary if you don’t have the depth for an inside-mount, or if you want to add length to your window. To cover your window frame, you will need to measure additional space around your window. We recommend a minimum of thirty-five millimetres on each side, and top and bottom.

blind installation guide: How to measure your windows for the perfect fit (outside)

Your measurements should include:

  1. Width (A, B, C)

Measure the width of your window, frame included, in three locations (top middle, bottom) and select the longest measurement. Don’t forget to include additional space on each side.

  1. Height (D, E, F)

Your height measurement should start from the top of where your proposed headrail will sit, and continue to the base of the sill. Again, measure in three places (left, middle, right) and choose the longest measurement.

Now that you are ready to get cracking with your blinds installation and window measurements, it’s time to make the all-important decision – custom or ready-made? Get in touch for an online quote, our dedicated teams are still working remotely to assist with all your queries.