Convert track width and fullness into an even curtain-pair cut list with whole fabric widths, hems, heading allowance, pattern-repeat uplift, leftover and editable HKD cost.
How much curtain fabric should I order for a full, pattern-matched pair?
Fullness applies to the combined finished width of the pair. Divide that width by usable fabric width, round up to whole widths and then to an even number; separately round each cut length up to the next vertical pattern repeat.
Method
The order length is whole widths × repeat-adjusted cut length, rounded up to the next 0.1 m purchase increment. Price is an editable planning assumption, not a live quote.
Important limitation
Heading tape, pleat style, shrinkage, lining, directional motifs, joins and workroom rules vary. Acoustic, blackout and fire performance cannot be inferred from dimensions and are excluded.
How to use the result safely
Treat this as a transparent planning ledger. Recheck every measured value, keep a margin for real installation conditions, and stop before spending when the exact first-party rule is missing.
