Originally Posted by JENKS
That makes sense. I measured my bare feet and they are 10.25 inches. Unfortunately I can't measure the board. It is a 2012 Ride Highlife UL in a size 158 regular.
Get the the tail width and average it with the waist width to get a "estimate" of the width at the inserts. Same with the tip width. At least it will be closer than using strictly waist.