I have built several of the Bingham one piece 1 3/4" wide recurves. I measure the total Stack thickness in the center of the stack where its the thickest. A possible recipe for a 1 3/4" 60" recurve would be...040 clear belly glass, 025 veneer, .110 taper(002/inch), riser, 040 parallel, 025 veneer, 040 clear Glass...that should be 0.280"