Fitting a Roman Blind Inside the Window Recess (Recess)
Width- Measure the inside width of the window at the top middle and bottom. Use the narrowest width measurement.
Drop - Measure the height of the window at the left, centre and right. Use the shortest height measurement.
The give us the width and height of the recess exactly. We will then allow the necessary working tolerances to ensure the blind operates perfectly within the window recess.
Please not that it is advisable to measure the width in several places, as stated above, and you should of course quote the lowest measurement for both width and drop.
Fitting a Roman Blind Outside the Window Recess (Exact)
Width - Decide how much you wish the blind to overlap the recess at each side. To minimize light leakage it is recommended that the blind overlaps the window recess by least 6.5 cm (2.5") each side.
Drop - When measuring the drop take into account the required space for the mounting bracket, a flat surface of a minimum 50mm is required.