So! I went to a 3.5" strip ... 40" long ... 40 strips per roll:
1600" -- first step = 800" x 6.5"
second step = 400" x 12.5"
third step = 200" x 24.5"
fourth fold = 100" x 48. 5"
fifth fold/step = 50 x 96.5"
60 strips, 3.5" wide, at 40 " long (1.5 jelly rolls) = 2400"
first fold = 1200" x 6.5"
second fold = 600" x 12.5"
third fold = 300" x 24.5"
fourth fold = 150" x 48.5"
fifth fold = 75" x 96.5"
and, finally <g> 2 jelly rolls of 3.5" pieces, average forty inches long, 80 strips = 3200"
first fold = 1600" x 6.5"
second fold = 800" x 12.5"
third fold = 400" x 24.5"
fourth fold = 200" x 48.5"
fifth fold = 100" x 96.5"
TA DAH! I think I figured it out for you. I got some measurements that are close to what you want ... but, do you want me to do some more? I have heard they do a 4.5" jelly roll :shock: would you like me to do that math on that, too? <wave>