The first step is to decide whether to fit your blinds inside or outside the window recess. Both look great so it is entirely up to you which to go for.OutsideUsing your steel tape, measure the exact width of where you want your blinds to be. Write down the measurement immediately.Next measure the drop from where you want the blinds to start to where you want them to end. Write down the measurement immediately.RecessUsing your steel tape, measure the width of the recess as shown in the diagram. Write down the measurement immediately.Using your steel tape, measure the drop of the recess as shown in the diagram. Write down the measurement immediately.Equipment requiredMetal tape or RulePen and paperStep laddersHints & TipsAlways take measurements in the same units. We recommend using Centimetres and have provided a conversion chart for your convenienceDon't try to remember the measurements - write them down as you make themLook at how windows open - you need to take this into account to get the perfect fitMake sure you leave enough room at the top and sides for Finials when using a Curtain PoleAlways hold your tape measure level when measuring to ensure accuracyMake sure that you can get to the opening cord easily when fitting Curtain Track and BlindsMake sure that you fit corded products in such a way as to prevent babies and young children becoming entangled in the cords