Curtain Sewing Instructions - Pattern Repeat Calculation

Whenever you sew two pieces of patterned fabricyou will have to think about that a bit but let me give
together for making clothing, using lace curtain fabric oryou an example and at the same time, show you that
whatever it is necessary to match the pattern acrossyou can save money this way.
the two or more pieces just the same as you wouldTo accomplish this we will use a curtain for the
when wallpapering a room. This can be accomplishedexample but any other sewing project would use the
using an easy but wastefully expensive method or bysame formula. Let us say that you are making a
actually using a formula to get exactly the amount youcurtain that involves two or more widths of fabric to
need and not an inch more than is necessary. Thesebe sewn together. Let us also assume that including an
days with fabric as expensive as it is the better wayamount for the top rod pocket and the bottom hem
would be the more accurate formula method. It justyou decide that you need each width to be a cut
takes basic arithmetic and a little more effort on yourlength of 100 inches. If, for instance, you have a 26 inch
part.pattern repeat we will plug that in to the formula and
Before we go into either method we have to knowsee what happens by using the easy way and the
the pattern repeat. The way to measure the patternbetter way. Incidentally, here is a good source for
repeat would be to measure from one part of asewing instructions for Curtains.
pattern to exactly where the same part of the patternIn the easy way we would just add the cut length of
repeats itself. We can then use that amount when100 inches to the pattern repeat of 26 inches. Since
arriving at the total yardage needed for our project.we are using two widths it would be 126 times 2
If you choose the easy way out you would first figuredivided by 36 inches 126X2/36=7 yards. When using
what the exact length of each piece of fabric wouldthe more accurate method we would divide 100 by 26.
be and then add a full pattern repeat to each length.The answer would be 3.85 which we would round up
When sewing the widths together you would line upto 4. You would then multiply 4 times the pattern
the pattern on each width and cut off the excess atrepeat which equals 104 inches. 104 inches times 2
the top of one piece and the bottom of the other. Thatwidths equals 208 inches divided by 36 inches 104X2
is all there is to it but you will be purchasing more fabric36=6 yards. You still have to cut the extra from the
than you need just to end up throwing it away.end of the first piece and the other end of the second
By choosing the far more accurate and less wastefulpiece but you will have to cut off far less.
way you could be saving a lot of money when fabricYou can easily see the cost savings in this example.
costs are now so high. To do this you would firstSay your fabric costs $19.95 per yard, which is not all
establish the pattern repeat as before. Now comesthat much in today's prices, by buying 6 instead of 7
the challenging part. You would have to divide the cutyards you save $19.95. If your project is even larger
length you actually need by the pattern repeat andyou can see the advantages of taking your time and
round up the answer to the next full number anddoing it right. Good luck with your next window curtain
multiplying that number by the pattern repeat. I knowproject.