Profit being extra money that he pays himself after he already paid himself.

270 sq feet of wood does not cost the $10k I see thrown around here, even with inflation/vocid surcharge. He's marking that up too. It's like $4-$5 sq foot for the boards. So maybe $1200 for the deck boards alone. Prices anymore are based on the going rate people are willing to pay not what the materials or job is worth.