Re: Nice Plant #7: Get me off of this planet
That doesn't add up for me - if I'm building a house with a couple of hundred 2x4s, I really don't care if they're within 1/16th of an inch. But if I'm running a lumber mill that's going to make a million 2x4s per year (or more - don't have a clue what a big mill would do), then that 1/16th matters - a lot. If I'm making mine 1/16th wider than the next guy, that's 6% extra material that I would be giving away for free. The "margin" that is important in this discussion doesn't have to do with geometric tolerance stackup, but with the business's profitability.
Not to mention the amount of waste you would generate from the milling. Green lumber sawdust is pretty heavy and it isn't easy to clean up. Granted nowadays you can probably turn around and process it all of the excess material into chips and sawdust and in turn, turn them into OSB or chip boards, there's still the cost of that processing you would have to factor in. Most likely some guy getting under the saws at the end of the day with a grain scoop and a heavy duty air hose to move everything into some sort of a conveyor system.Not knowing the business model of saw mills, it might be more profitable to give the "extra" material away for free if it means you can produce XX amount more than your competitor. Maybe the cost of running the machines and labor are the determining factor and not the cost of the raw material?