We've got a lot of 6" blocks that may be of use to you. We will package a 12" x 12" x 12" box with 3" and 4" thickness x random width blocks of 6" length. Price is $15. That is 12 board feet of wood, so it works out to $1.25 per board foot.

Please go to the "Ordering" tab and pull up the "WIDE BALSA WOOD SHEETS AND BLOCKS" where you'll find this listed about half way down the page.