I know you guys have used trusses before

Looks like you got some good information but I'd like to stick another
question in here if I may. Are trusses for 30' span and average pitch
(haven't determined this yet) something that can be lifted and set by
2 or 3 guys or is a cherry picker necessary? Thanks - just in
preliminary thought stage.

The first time I ever placed trusses, there were4 of us putting them ON the
top of the walls...I was the youngest and therefore was the only one ON the
wall stacking them at the end of the house. When we actually placed them,
there was 3 of us...one at each end to nail them in and I walked the wall,
carrying the trusses and setting them in place, then tieing the top together
with scraps of 2X's. These were 32' span 4/12 with 2' overhang.

There were two trusses that we had to have heavy equipment to place. The
house is L shaped with a hip at the bend...this design called for two heavy
trusses...one double plate and one triple plate. And the bottom chord on
both of these was BIG...2X8 on the double plate and 2X10 on the triple.

So yes, they can be placed without a crane, IF you are...or have someone who
is...young, dumb and strong. Doable, but if you've got a crane laying
around, use it.

Mike