https://www.poweredblinds.co.uk is not taking a complain seriously when they deliver the wrong measurements and try to pushback to the customer with excuses that that is with in the advertised recess fit. Important note when measuring for your powered roller blind: We have to allow for the brackets and motor head at either end of the blind, so please be aware that the fabric width is approximately 3.6cm less than the overall recorded measurement. Open & Closed Cassette Systems - INSIDE RECESS FIT ONLY We will deduct 10mm from your width measurement when ordering a cassette system to be fitted inside the window recess. This is to ensure the cassette profile fits comfortably within the window recess area (there will be a 5mm gap at either side of the cassette profile when fitted). Think twice before you purchase from them.