gruvystarchild

"But with lumber and roofing materials there's no sense figuring it
out to the
inch because lumber and tarpaper and stuff only come in certain
sizes. You
put it on and cut off the extra. "

This is very true, but....
I was making the materials list and knew the bottom 2x4 had to be 10
feet. Knowing that the top piece would be longer, because of the
angle, I didn't know if 10 foot pieces would suffice or if I needed
12 foot 2x4. After doing the calculation, I could see that it was
such a tiny amount that the 10 foot would indeed work fine.....no
need to buy 12 foot and cut the extra off. :)
So sometimes, knowing a little math can save you money! Cool.

Ren