How to Measure Your Windows for Shades

Made to Measure


Window shades can be an excellent alternative to curtains, especially in rooms where you want to be able to control the light. Roman shades are great for privacy and can be the ideal choice for bedroom and living room windows.

Our roller shade range also offers options in a blackout finish which are perfect for bedrooms and a waterproof finish suitable for bathrooms and kitchens.

If you're opting for shades, it's important to take specific measurements of your windows. This blog will take you through how to measure for shades, whether your windows have deep, shallow or no inside mounts.

Types of shades

At Graham & Brown, we sell two of the most popular types of shades: roller shades and roman shades. The difference between these shades is the way in which they extend - roller shades can be rolled and unrolled, whereas roman shades fold upwards and downwards in pleats. They are also made from different fabrics: roller shade fabric is stiffer and has a blackout coating applied, and roman shades are soft with an extra lining to make them blackout.

You can choose between two stacking finishes when ordering shades from Graham & Brown - the stacked finish, where fabric neatly stacks behind itself, and the waterfall finish, where the fabric cascades when in the open position.

Both our roller shades and roman shades use a pulley mechanism, operated by a chain.

Measuring a window with a deep inside mount

If your window has a deep inside mount, a shade will fit comfortably flush against the window whilst still leaving you room on the sill. However, if you have window handles or anything that protrudes on the inside of the window, you will need to leave a small space.

Deep inside mount - width measurement

Use a metal tape measure to measure the width of the inner inside mount. Take three measurements - one inside the inside mount at the top, one in the middle, and one along the inside of the sill at the bottom. Take the shortest measurement as your width.

Deep inside mount - drop measurement

For the length, or drop, again take three measurements - one down the right side, one down the middle, and one down the left. Take the shortest measurement as your drop and order your shade as a inside mount measurement. Graham & Brown will then make an allowance to ensure the shade fits into the inside mount.

Measuring a window with a shallow inside mount or no inside mount

If you don't have a window inside mount, or it is quite shallow, your shades will need to hang outside the inside mount.

Shallow or no inside mount - width measurement

Use a metal tape measure to measure the width of the window from outside the inside mount and add 20cm to the result, to allow for a 10cm overlap on either side. Take three measurements - one across the top, one across the middle and one across the bottom. Use the largest measurement as your width.

Shallow or no inside mount - drop measurement

For the drop, measure from the top of the outside of your inside mount, down to as far as you'd like your shades to hang. Add 10cm to this measurement and record the figure as your drop.

Not sure about shades? Check out our guide to measuring your windows for curtains.