What are typical random lengths of planks? I just receive 85 planks all 16 footers (the only length of #1 pine I could get, locally). I want to cut these into more manageable lengths. What mix of lengths would you recommend?

That would be up to you and the size of the rooms they are going in and the look of the floor your going for.

That's what I figured. After posting the question, I realized that it as a really dumb question. I'm thinking I'll keep the lengths in 4,8,12 foot measues, then adapt to whatever I need to fit. I'm going to try racking the floor to see what I have. One, minor complication, is that one of the walls is shaped like a "V" . In the center of the "V" is a fireplace, and next to that (a couple of feet away) is a slideing door. The space I'm working with is shaped somewhat like a "T" starting in a hallway leading to an open kitchen, dining/living area. The "V" is at the top of the "T". It'll be a challenge of a first-timer.