Curtain fabric calculation, made simple for everyone to understand.
An example of this calculation is as follows:
Curtain fabric width – 137cm
Curtain fabric pattern repeat – 63cm
Track width 270cm
Chosen heading – Triple Pinch Pleat
270 x 2.5 = 675
675 / 137 = 4.92, rounded up to 5 widths, requires 2 curtains 2.5 widths in each.
Height 220 + 25(turnings) = 245cm. Divide this by the vertical pattern repeat of 63cm, gives 3.88 repeats, round up to 4 repeats, multiply by 63cm, totals 252cm cuts.
5 widths at 252cm = 12.60 Metres. This is the total fabric required.
Hints and tips.
When measuring for the track, make sure you allow enough each side to get the curtains off the window so as not block any light when the curtains are open.
Always round up on the width calculation, as curtains with not enough fulness don’t look good at all.
Roman Blind Calculations
This does depend on the detail of how you prefer to make the blinds, as ours have a large hem and a pelmet to cover the velcro stiutch lines at the top.
Based on our method, we require 40cm for turnings on the height. If the blind is 125cm wide or less, this can be made from a single standard width of 137cm.
If the blind is wider than 125cm, then a whole width is required for the middle, and a further width to add a join down each side. If there is a pattern repeat, you simply add 40cm to the height, divide this by the pattern repeat, and round up to the nearest whole repeat to calculate the length of cuts required to allow for pattern match.
We trust this is helpful.
Of course, we are more than happy to do all the calculations for you, and even make the curtains and blinds up and ship anywhere in the UK.