How many widths of fabric do I need for curtains?
Curtains aren’t just flat sheets of fabric, and while this is sometimes a matter of personal taste, it’s usually determined by the curtain heading type that you’ll need (usually between 2 and 2½ times fullness to achieve an attractive look).
Here's a list of the fullness you should use for each heading -
Pencil pleat / Gathered / Stand Up / Floppy top x 2 fulness (6" pencil pleat tape can be 2.5 for extra fullness)
Eyelet / Tab Top x 2 fullness
Double Pinch Pleat x 2.3 fullness
Triple Pinch Pleat x 2.5 fullness
Wave x 2.3 fullness
There’s a simple calculation to work out how much curtain fabric you need. First, multiply the track/pole width by your chosen fullness (eg. Pole width 150cm x 2.5 = 375). Next, divide that figure by the fabric width, which is typically 137cm (375 divided by 137 = 2.73). Then, round that up to the closest whole number to calculate how many widths you need (3). Finally, multiply the drop measurement by the width number to reveal how many metres of curtain fabric to order (175cm drop x 3 = 525cm – so I’d need to order 5.5metres of a plain fabric).
If you’re choosing patterned fabric, you need to consider extra fabric you’ll need to match the pattern, depending on the size of the pattern repeat. You take the curtain drop and add the hem allowance for the choosen heading, then divide the pattern repeat into this total and round up.
Example - Curtain drop 220cm, hem 25cm (for pencil pleat). 220cm + 25cm = 245cm. Pattern repeat is 64cm. So you divide 245cm by 64cm = 3.8 repeats which you have to round up to 4. So each drop will need 4 x 64cm repeats = 256cm.
USE OUR CURTAIN & BLIND CALCULATOR ON EACH PRODUCT PAGE & IT WILL WORK IT OUT FOR YOU!