To move timbers around you can use a stationary roller.
Like this:



You pick up one end or pivot one end up and put it on the roller, then slide it where the timber balances on the center point and then you can rotate it some to set it off onto your saw horses.

Here we were moving 7x10's 22' long with just a sawhorse roller and another roller mounded to a short plank:



As mentioned use a fulcrum and balance points to move timbers.

Jim Rogers


Whatever you do, have fun doing it!