How much curtain fabric do I need?

Multiply the track width by the style's fullness — about 2.3 times for wave, 2.5 for pinch pleat and 2 for eyelet, with pleated styles adding about 15 cm per curtain for the overlap and returns first — add side hems, and divide by the fabric width to get the number of widths. Multiply the widths by the cut drop, which is your finished drop plus roughly 30 cm for heading and hem. A 240 cm wide, 260 cm tall pair of wave curtains in 140 cm fabric needs about 14.8 metres.

Fullness is how much wider the flat fabric is than the track it hangs from. At 2.5 times fullness, a 2 metre track takes 5 metres of flat fabric, and that extra cloth is what makes the folds. Less looks thin; more looks heavier and stacks wider when the curtains are open.

Yes. Every width has to be cut to a whole number of pattern repeats so the design lines up across the seams, and one extra repeat is allowed for placing it. With a 64 cm repeat, a 290 cm cut becomes 320 cm on every width.

The same number of widths as the curtain fabric, cut a little shorter: your drop plus about 21 cm, because a lining has no heading and no pattern to match. Blackout, dim-out and standard linings all take the same amount.

Use it to plan and compare styles. Before anything is cut we measure every window on site and confirm the final quantity with your quote; the ฿1,000 measuring fee is credited in full when you order.