Thanks.
I guess I should have explained about the making of this quilt...since I had don't that in a reply to another message, wasn't thinking that it would be helpful to put it here also.
Anyway, I cut the t-shirt sleeves out, the neck ribbing and the shoulder seams off along with the bottom hem, then opened the shirt down each side.
I ironed thees pieces to lightweight woven interfacing so I could cut neatly.
I wanted each row of block to be the width of the bandannas that I used which were 16 in. and wanted to use sashing between the blocks but didn't want it to meet with one next too it. I could built up the 16 in width if needed by adding other t-shirt fabric, and increase or decrease the height by cutting different heights from the shirt. There was a bit of layout and calculation to get this to work.