The simplest and easiest approach would be to use the PDF/templates that LyndaOH has provided for you.
But if you want the "complicated approach" to figuring out the width - here goes:
The width of the finished strip is the square root of the sum of the squares of finished widths of the bar strips. (I know I have lost at least 85% of the people that are reading this post with that last sentence.) The Pythagorean Theorem is useful to know - it is very handy when figuring out what size to make setting squares
The "finished" width of the cross-over strips will be 1.414 (square root of two) times the "finished" width of the "other" strips.
Bar strips (2.00 + 0.50) = 2.50
(2 + 1/2) = 2-1/2
Diagonal strips ((2.00 x 1.414) +0.50) =
(2.828 + 0.50) = 3.328
1.414 is a bit larger than 1-2/5 , but is fairly close
(2 x 7/5 + 1/2) = 3-3/10 inches - which is fairly close to 3-5/16 inches
1/8 = 0.125
1/4 = 0.250
5/16 = 0.3125
3/8 = 0.375
1/2 = 0.500
5/8 = 0.625
3/4 = 0.750
7/8 = 0.875
1 = 1.000
It really is NOT that big of a deal to cut something on a 5/16th - it's between the 1/4 and 3/8 inch lines.
Last edited by bearisgray; 05-26-2015 at 07:54 AM.