thats pretty much the same in any organization you have to put a limit on box size or else people could build 3/4 walls and say its not a wall if you know what i mean. That truck would be tricky cause of the back seats in the cab in any organization with a large box.yea Id end up in the Pro class with my truck, a single 12" id max, but b/c I have a rear seat in my extended cab it would be move than 25" from the floor so Id be in the pro class, not happening, Id have to be in pro with my van but thats a whole nother ball game, not quite sure if I like the rules with the box heights, I think that will bump a whole lot of people up into the pro class, probably where they shouldnt be, since that class has no rules for a box, eh Ill wait and see how it goes I think . . .
In slap I know for a fact all seats must be usable. So if it folds from the right left down up. It still must be usable. Im not sure about Iasca but slap and Iasca have some of the same rules.my friends got 2-12's in his chevy under the seats, but if you have say a tacoma where the seats fold from the sides you dont have to use them, the enclosure must be no higher than 25" from the floor on those kind of trucks, same goes in IASCA.