FullTimeStudent » Of course, Noah could've paid others to source the timber, but that adds another dimension to the conundrum. Where did Noah get the funds for purchasing the timber (a voluntary contribution box maybe-haha). Who was Noah anyway? He just appears in the account. Was he a sort of local ruler? Did he have slaves to do his bidding? If he did, why are none of them 'saved.' (In the slave owning households of early Christianity, many slave became believers and are described as being saved).
It took forty years to construct the ark and no account of how it was done is given. We don't even know what it looked like. The Book of Jasher tells how, when it was finished, wild animals surrounded it and kept people from breaking into it when the rains came and the water began rising.
How did Noah light the inside of the ark when the doors were shut? It doesn't say, though it's safe to say it wasn't by fire. There are ancient traditions that he used stones blessed by the Lord. During the day they would burn brightly and at night the light would be diminished. The ark also likely had a hole in the top for fresh air and for observation, and one at the bottom. By sealing the hole at the top, they could open the one on the bottom and dispose of waste.