Our factory will make the following adjustments:
For inside mount, the total shade width will be 3/8" less than the ordered width. The fabric deduction will be 3/8" less than the ordered width. Do not adjust your measurements based on the inside mount deductions. Doing so may result in your shade not fitting.
For outside mount, the total shade will be ordered width. The fabric deduction will be 3/8" less than the order width.
The height of the product will be longer than ordered, which is considered normal and will not affect the aesthetics of your shade. The factory does this to allow pleats to hang freely in the window and avoid sagging.
Deductions may vary +/- 1/8"