Use a steel tape, never a cloth dress makers tape. Measure both sides for depth, giving us the lesser of the two measurements, and measure the top and the bottom (window recesses are not always uniform) again, state the lesser dimension.

It is easiest if you state the actual recess size and do not deduct anything. However, if you prefer, you can make deductions and state that your order is actual blind size.

Use a steel tape, never a cloth dress makers tape. Measure the window and decide by how much you wish the blind to overlap at the sides, top and bottom. State the size and state that it is actual blind size outside recess fitting.

You might find the window ledge obstructs the smooth operation of the blind. Either use a batten to bring the blind away from the wall surface so it misses the ledge, or stop the blinds drop at the ledge.

Full fitting instructions, screws and brackets are provided. You will need some standard DIY kit, such as screwdriver, plus drill and rawplugs if you are drilling into masonry.

If you would like further assistance call one of our customer service assistants, by e-mail, phone or visit one of our stores.