Measuring Guides

Rapid Roller Blinds

Measuring for your new blinds is easier than you might think!
All you have to do is follow our simple tips, double-check everything you do, and set aside some time to do it. Happy measuring!

This guide works for:
  • Rapid Roller Blinds
  • Rapid Roller Cassette Blinds

Standard Windows

Recess fitting

Measure the full width and height of the recess [the size of the hole if you like] and deduct 5mm for a perfect fit. The deducted size is what we will make the blind, “bracket to bracket”.

  • Measure in 3 places for both the width and the drop. For the width, compare the measurement at the top of the recess with the smallest of the measurements you’ve taken – if the difference between those is less than 25mm, use the measurement at the top of the recess. If it is not, use the smallest
  • Use a metal tape measure, cloth ones can stretch and give you inaccurate measurements
Top-Tip:

Check that your recess is deep enough to fit the blind into, also bearing in mind any obstructions such as handles (see table).

Standard Roller Depth
Top-Fix Face-Fix
50mm 70mm
Double Roller Depth
Top-Fix Face-Fix
120mm 105mm

Exact fitting

Measure the full width and height of the recess [the size of the hole if you like] and add a little extra to the top and to each side, we will make the blind to the size you specify with no deductions

  • To minimize light leakage we recommend that the blind overlaps the window recess by at least 70mm at the top and 50mm each side
  • The overlap at the bottom of the blind is a matter of personal choice but please take into account obstacles such as radiators

Other Windows

Part-tiled recesses

If you have tiles part-way up your recess (often the case in kitchens and bathrooms) then the space between them is most likely to be the narrowest point in the recess.

Measure at the top of the recess and between the tiles. Compare the two measurements; if the difference is less than 25mm, use the measurement from the top of the recess.

If it is not, use the width between the tiles. You will need to top-fix or face-fix your blind if this is the case.

If it is not, use the width between the tiles. You will need to top-fix or face-fix your blind if this is the case.

Bay windows, half-bays & L-shaped windows

We have some handy guides already put together especially for roller blinds in bay windows, click on the links below to take a look!

Angled bay windows

You can use these same guides for angled half-bay windows, it’s the same principle.

Square bay windows

You can use these same guides for L-shaped windows, it’s the same principle

Bracket-to-Bracket Width

Bracket-to-bracket width is the full width of the blind including the fittings. This is approximately 35mm wider than the width of the fabric.