What deductions do you make when manufacturing a roman blind?

What deductions do you make when manufacturing a roman blind?

For Vertical blinds we deduct 10mm from the width and drop of your blind if you order as recess.
If you order as exact then the width will be your exact size provided but we will still deduct 10mm from the drop of the louvres this ensures that they hang free from the window sill or floor.
All other blinds drops will be the drop size you supply.
If you order your blind as exact then that is how your blind will be made, the exact size you provide (width and drop), with the exception of a vertical blind as explained above.
Please note with roller blinds we will deduct 0.5cm as above, but you also lose 1cm of fabric pin end and 2.5cm controller end to allow for the components fitting and operation. Click here for more infomation.