89mm Made To Measure Blackout Vertical Blinds Blackout vertical blinds are a stunning way to finish off your windows in bedrooms, conservatories or even fitted in front of patio doors. The 3 pass blackout fabric doesn't allow any light to pass through whilst also offering thermal insulation for the room. Please be aware that this is not a total blackout blind as you will have some light enter between the slats. All of our blinds are made to measure to fit your window perfectly, and can either be top-fitted to the ceiling above, or face-fitted to the wall behind the blind. We supply your blind with an easy-to-use, cord and chain control, for effortless, precision light control and an easy-fit, self-adhesive child safety device for peace of mind.