What's considered "long"?

[Roy Stewart]

9´1 included and over is an oficial longboard

Not true, technically speaking not all boards over 9'1' are 'official' longboards. . . . my 13 footer for example is barred from competing as it is not officially a longboard, even though it is 4 feet longer and much heavier than competition 'longboards'

What we have to realise is that doublespeak is rife the official surf industry.

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[9.2]

So I don´t understand. Ho is the limit?
9`0 to 12 feets?
Or your 13 footer isn´t a longboard? May be a gun... don´t know.
Sorry for my inglish.

[Roy Stewart]

It's the width requirement, officially a longboard has to have a certain number of inches of width when the nose, tail, and widest point measurements are added together. . . . the reason they do this is to make the boards difficult to ride so that the riders have to do tricky footwork to get them to work, and to make the boards look like boards from the 1960's for marketing reasons.