Listen to Uncle Miltie!
I totally agree...this sort of thing really depends on who/where you are, and how you are doing what you do. Other factors...metalwork, site-access, chamfers and stops, shaped timbers, curves, hand-raising vs crane raising, rushed-schedules and a really important one: handling big wood. We add extra handling time for particularly long, big or heavy timbers...anywhere from 10-20% extra labour on those pieces in our experience (OK...so maybe we're just wimps)
The most brain-twisting answer I've come across is ballpark pricing by internal volume...it makes so much sense but I still can't quite get my head around it! (We did a job in Holland a while back and the planning laws there are based on cubic volume)
