36. That's pretty much it. You can join rows to rows in the same way that you joined blocks to blocks, and then fill in those newly created windows with glass in the same way. At the edges of the quilt you can use 1/2 a glass fabric, or use no glass at all and just turn the frame there and stitch it down. After the quilt is done, just do a binding like you normally would any quilt.
That's it! Enjoy! :D