Kick your heel (barefoot please, no socks) back against a wall. Mark the floor exactly at the tip of your toe (the one that sticks out furthest - which toe this is will vary by rider). Measure from the mark on the floor to the wall. That is your foot length and is the only measurement that you will want to use. Measure in centimeters if possible, but if not, take inches and multiply by 2.54 (example: an 11.25 inch foot x 2.54 = 28.57 centimeters).
Second, measure the board you are considering. This measurement is easy. It should be taken at the inserts. Try to measure at the inserts that you will be using to achieve your stance position. If you are unsure about this, simply measure at the center of the insert cluster (that will still be very close). Be sure to measure using the base of the board, not the deck. This is important because the sidewalls on many boards are angled in, and will therefore give you a smaller measurement on the deck than on the base. For our example's sake, let's say the measurement is 27.54 at the center insert.
Still with us? You are almost done. You now have a way to compare foot size to board width where it matters, but how do you interpret this info to get the correct width? Well that depends a little on stance angle. If you ride a 0 degree stance, you will want your foot size to be the same as the width of the board at the inserts or up to 1 cm greater. If you ride at an angled stance, you will want to measure the board across at the angles that you will be riding. Again, you will want your foot to at least match this measurement or exceed it by up to 1 cm. So using our example above, this guy has a foot 28.57 cm that exceeds the board with at the inserts 27.54 cm by 1.03 cm at a zero degree angle. But, when he angles his feet to the 15 degree angles that he rides, voila, he has .10 cm of overhang for a perfect fit.
But wait a second. Are we saying that you should have overhang, even with bare feet? Yes. You will need overhang to be able to apply leverage to your edges and to get the most out of your board. 1/2 inch to 3/4 inch of boot overhang for both toe and heel is ideal, and will not create problematic toe or heel drag. Remember that boots typically add 1/2 at both the toe and heel to your foot measurement from above, due to padding, insulation and the outer boot materials. We do not suggest using the boot length to size boards though, as the extra padding etc, cannot be used well to create leverage, that has to come from your foot itself. We highly recommend that riders do not choose boards where their feet do not come to or exceed the real board width.
OK, that's all well and good, but where can you get the information on board width at the inserts if the manufacturers don't provide it? That's easy. Email the store that carries the board(s) that you are considering. Give them your foot length in cm (and your stance width and angles if you know them). They will be able to provide you with the width at the inserts that you will be using and can factor in your stance angle as well to get you the exact overhang that you will have with bare feet.
Hey Wired, so after reading this advice i have obeyed but want your input. Great post btw.
Neversummer Heritage 162cm
Width at insert: 27.0cm
Stance angle 15/-15
At that angle i will roughly lose 1cm off the effective length of my foot across the board, never thought Pythagoras Theorem would EVER come in handy, i think i owe my maths teacher an apology. This still leaves me at 28.5cm vs a 27cm board width. Is this too much?
I posted my height etc to make sure i'm looking at the correct board length. I asked the shop to measure the Heritage X also but they dont have it in stock, will i be ok with a regular heritage or should i look in to sizing the heritage x too?