On Friday, April 15, 2011 6:02:09 AM UTC-7, Hoosierpopi wrote:
I have... six two by twelves (pressure treated) twelve feet long

OK, I need to rip them down into two by six boards (or whatever
ripping them down the middle will actually yield).

My first preference would be to rip with a bandsaw, actually; less
kerf, less sawdust. But, feeding something that long to
a stationary tool is a two-man job.

I've not seen rip blades in throwaway carbide for 7" skilsaws,
but if there are any, that'd be a good choice. Remember
to collect and dispose of the sawdust, it has toxic stuff in it.
Give the poor saw a few minutes to cool between planks.