Each block is made from 16 half square triangles, in various solids. The HST blocks are 2" before assembling them into the bigger block and the finished blocks are 6.5". The solids are the same size and the top before quilting is about 35.5" square. This is my first time to do precision piecing and it really, really makes a difference. Starch and trimming to size is the key. I am gaining confidence to make quilts that have always intimidated me in the past. And now I think that I don't have to make a whole bed size version, just a quilt big enough to say I've done it. A big Thanks! to Margo Clabo for her advice.