Here are some tips enabling you to measure your windows accurately.
For blinds, all measures should be very precise. Make sure that once you have placed your blind, it does not hinder opening of the window.
For a blind in the window:
Measure its internal height and length at several points to check whether the wall is straight or level.
For a blind that is larger than the window:
We recommend you to let it overlap the edge of the window by 2.5 cm on each side as far as the width is concerned. Possible extensions of height depend on the possible presence of a shelf or radiator.
Note: a folded blind should have a minimum height of 28 cm when it has been folded.
For curtains, 2 cm more or less will not make a difference for the width (unless for a finishing touch like simple pleat or box pleat). The height on the other hand should be measured very precisely.
If the rail or bar is already in place:
The right width to measure is that of the rail or bar without the end-pieces.
The height will be measured between the bottom of the rail or bar and the floor or shelf.
If there is no rail or bar:
Measure the interior width of your window and add 30 cm. For the height, there are two possibilities: you can place your curtain rail at the height of the ceiling or approximately 15 cm from the top of the window. In both cases, the measurement to be taken is the distance between the bottom of the rail and the floor.