I am with the reply #3 from Hopetoquilt. There are books available on making t-dhirt quilts. No doubt you will find good information onllne, too. I made one for my grandson more than a year ago. The t-shirts were in different sizes since they represented what he had worn over a number of years. I also fitted them like a jigsw puzzle. I used sashings to provide unity to the quilt. In case he wanted to use it as a wall hanging, I added a sleeve onthe back. He said no way, he was going to use it as a quilt!