Calculate stackback and rod width

Parameters
Width of window glass:
 

Results

Rod One way draw Two way draw
Rod width 83 90
Total stackback 23 30
Panel width without returns/overlaps + 3% ease 86 47

Blue Orchard Designs is not liable for orders or projects relying on these calculations.  Additional factors that will affect the requirements include, but are not limited to width of the window framework, the bulk of the fabric chosen and the style of pleat chosen.