Pleeese can someone help me before I throw these blessed curtains out the window (yes it's those red striped silk curtains again).
I've done the calculations for the pleats as follows:
The width of one unpleated flat curtain (with widths joined & sides turned in) is 316.10 metres
Half pole length is 125cm + 15cm springback = finished flat width 140cm less 10cm for ends (5cm each end) = 130cm fabric for spaces
Flat width 316.10 less finished flat width 140cm = 176.10 fabric for pleats
Pleat size 15cm = 11.7 pleats
Round up to 12 pleats = finished size of pleats 14.7
No of spaces = 11 (one less than pleats)
Fabric for spaces = 130cm div by 11 spaces = 11.8cm per space
Checking my calcs to make sure they work:
12 pleats x 14.7cm per pleat = 176.1 cm
11 spaces x 11.8cm per space = 130.0 cm
10cm (5cm per end) = 10.0 cm
Total = 316.10 flat fabric
I thought I'd got the numbers right but when I marked it out on the fabric - I had less pleats & about 16cm left which is too much for the end space but not enough to fit in another pleat & a 5cm end. I'm guessing it's something to do with that 10cm springback?
Should I mark out all the pleats & spaces then pin all the pleats OR should I mark a pleat, pin it & then mark the next one so the springback gets used up???
I do hope someone can tell me what I'm doing wrong!
I've done the calculations for the pleats as follows:
The width of one unpleated flat curtain (with widths joined & sides turned in) is 316.10 metres
Half pole length is 125cm + 15cm springback = finished flat width 140cm less 10cm for ends (5cm each end) = 130cm fabric for spaces
Flat width 316.10 less finished flat width 140cm = 176.10 fabric for pleats
Pleat size 15cm = 11.7 pleats
Round up to 12 pleats = finished size of pleats 14.7
No of spaces = 11 (one less than pleats)
Fabric for spaces = 130cm div by 11 spaces = 11.8cm per space
Checking my calcs to make sure they work:
12 pleats x 14.7cm per pleat = 176.1 cm
11 spaces x 11.8cm per space = 130.0 cm
10cm (5cm per end) = 10.0 cm
Total = 316.10 flat fabric
I thought I'd got the numbers right but when I marked it out on the fabric - I had less pleats & about 16cm left which is too much for the end space but not enough to fit in another pleat & a 5cm end. I'm guessing it's something to do with that 10cm springback?
Should I mark out all the pleats & spaces then pin all the pleats OR should I mark a pleat, pin it & then mark the next one so the springback gets used up???
I do hope someone can tell me what I'm doing wrong!


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