As a matter of fact, you don't need to overlap them at all. You could place them right next to each other.Should you decide to overlap them, without doing a bunch of math, you can estimate the number you would like to place on each side, and then lay them on the side and adjust them.
For this little project, I decided I wanted to make my prairie points slightly smaller than the patches. And it took 6 prairie points to make it look appealing. If I had used only 5, they would have been spread out and not overlapped at all. If I had used 7, they would have been more overlapped and the points would have been jammed together.
The process I used was to lay the out, beginning with about a 1/2 inch overlap. Once I saw how they would fill in the side, I adjusted the overlap so the ends of the prairie points on each side of the quilt met the corner of the quilt. It might have been better if I had ended the line of prairie points 1/4 inch short of the end of the quilt.
Penny Halgren
www.HowToBindAQuilt.com - for answers to your binding questions and video demonstrations showing 6 different ways to bind a quilt
