Carpentry is the most critical skill in building a house. The gap between an architect's plans and the skeletal frame of a house lies in the skillful hands of the carpenter. He has to be able to read house plans, interpret scale, cut lumber to precise lengths and angles, and hammer everything into an amazing yet intricate frame of a soon-to-be home.
How does he do that so quickly? I mean in a matter of weeks the house goes from a foundation to being enclosed in no time at all. The success or failure of a carpenter lies in his adherence to one concept:
Measure Twice, Cut Once
This trust but verify mentality makes the difference between a strong and sturdy home and a house that will eventually crumble to the ground. The carpenter knows that lumber is very expensive and when it is cut hastily, it triples in value. Mistakes are not only costly to the carpenter but to the strength of the frame. So he must ensure that before he cuts a piece of lumber, he must measure once to get the correct measurement and measure it a second or even third time to verify that the first measurement was indeed correct. Once his measurement is verified, his steady hand must carefully saw the wood.