Now that I'm about done with my chassis (all I need now is paint- and now the temps drop

), I"m starting to think about making sawdust. i"ve seen so many ways on here to waterproof ply but wanted to know my options from those that have tried them, and any problems you've had with it. also what kind of ply you used.i'm definatly going to use ply from a reputed lumber yard- there are a couple within a 45 min drive i think it will be well worth the extra$ after seeing the voids horror stories, but being in ohio i think the marine stuff may not be an option. also im not afaid to spend money on waterproofing but just wantto know my options- everything from fiberglass cloth and epoxy to ceps( if thats what its called)- and everything inbetween. this is another process on here that i have info overload

.still on a budget but could scrape together what i need.
Thanks again for all the great ideas, John