Originally Posted by fromthenestdesigns

Go ahead and read through all the posts. (it might take you a while) There is one of them where I explained the math to figure out how many strips and inches you will need for a particular size quilt.
For example:
If you have 25 strips of 40" long you have
1000 " by 2" (I count the finished size because it's easier)
fold once: 500" by 4"
fold again: 250" by 8"
fold again: 125" by 16"
fold again: 62.5" by 32"
Add borders you want and you have a quilt.
Or:
20 strips of 40" gives you 800" (or scraps totallying 800")
fold once: 400" by 4"
fold again: 200" by 8"
fold again: 100" by 16"
fold again: 50" by 32"
Add borders to make a nice throw or baby quilt.
You get the picture.
Good luck!
Robin