Hi all, I have always thought the correct way to measure the length of a board was on the underside, bottom up. I notice Jim Philipps DVDs say he does it deck side. Which is correct, assuming there is a "correct" way?!
On the deck side, tip to tip.
SHAPER SINCE 1958
Deck side for a reality.
Take a tape measure and run it from the back of your feet to yhe back of your head . See how tall you are... not bend over and do the same. all of the sudden your taller! And yet..: you are shorter.
Doesn't really matter as long as people involved are on the same page. It's arguably easier to measure from the bottom when doing widths at nose, widepoint and tail. The often flatter bottom just makes it easier than trying to adapt to deck curves. I'd also say that most of the time if you go in a shop or shaper's room they're gonna measure tip to tip along the bottom... not technically a true 'end to end' length as it follows the rocker. The only time I've ever seen it make any difference really was in a contest where it was stipulated 'tip to tip' on the deck for minimum longboard requirement of 9 feet. One guy had a board that had been measured along the bottom and he came up too short to qualify... and not by very much at that.
As the template I make is the length of the board I want; when you lay it on the bottom of the blank to mark out that's where the length ends up.
6ft template equals 6ft along the bottom.
Hmm, a mixed bag then!! Thanks for the input. I guess I just have to choose!
The bag is not mixed. A straight line measurement (easiest to do on the deck side) tip to tip is going to give you the length of a board.
Taking a curved measurement off the bottom will give you the length of the curve of your rocker/rockers and while the two might be close... they aren’t the same.
A careful reading, of post #2, will reveal all you need to know.
BIll, back in the day, was it common to flip the blank to check/make this measurement and cut deck side...or was the work done bottom side with an allowance?
Not arguing how to measure a finished board, just wondering how it got done on the stands in production mode.
I saw an old clip of Terry Martin and he used the tape as a reference, bottom side, no marks on the blank. Cut, measure, cut.
Be safe, have fun. -J
Prior to the advent of hard low rail board designs, the templating was done exclusively on the deck side. Doing the layout on the bottom then reduced the chance of errors in the outline, when making low rail designs. Not only did I go through the ''short board revolution'' while actively shaping, but I also went through the transition from Balsa to Foam, as the core material for surfboards. The deckside layout technique was rooted in the Redwood Plank, Balsa Era, construction tradition.
The true measutement of course is tip to tip at the deck; but the reality is that MOST (and when I say "MOST", I mean MOST active shapers). Use tip to tip bottom measurement as their FINAL measurement i.e. The one penciled onto the Blank. Their is a logical reason for this, but I'm not going to join in on any pissing contest with a genius. Like someone said if you are on the same page as your customer; what difference does it make??? I just recently Shaped a 10'2 out of a Clark 10'1""Y. Go figure. Clark was unique in this aspect. None of the "Big Three" Poly manufacturers will Net a longer measurement across the bottom than the deck.