Thinking about fabric requirements
Fabric can be thought of as square
inches.
If the quilt you are making
is going to be 80" x 80", that would be a total of 80 x 80 = 6400 square
inches.
So, we know going into the project that the total amount of
fabric for the quilt top will be over 6400 in2.
But, we have to
allow for waste. Where we are piecing, there is seam allowance to
figure in... let's add 5% for that. Then what about pattern
placement... add 10%. Human error? Let's add
10%.
So....
6400 x 25% = 1600 in2
extra, totaling 8000 in2
Now, how many yards is
that?
8000 / 42 = approx 190 inches linearly
190 / 36" per
yard = 5.28 yards
So, the
total yardage we've estimated for the quilt top is approx 5 and a quarter
yards.
The above is just an
example of a way of thinking about fabric requirements... YMMV.
