What size do you cut the big squares (the ones that are not pieced)? If you provide that cut measurement (or finished measurement; either one), I believe I can work out the cut sizes of all the other pieces (given the 5" cut size that seems to apply to all the pieces in the pieced block).
Edit: Working it out on paper, it does appear that a 5" square sewn to a 5"x4" piece would equal 8". There is only one 1/2" seam between them. 5+4-1=8. So the piece sewn together would be 8"x5".
It would also help if you would provide all of the stated cut sizes for the pieced block.
Last edited by Prism99; 04-29-2014 at 11:58 AM.