2000 sf home in Denver. 2x4 to ceiling height. 12" between studs (assuming 18" actually, plus additional for top / bottom frame, door / window frames, and corners).I wanna see someone build a 300K house with $6K (2%) spent on lumber.
25 x 40' footprint = 130 linear feet of wall.
double that for two stories, double again for equal number of interior walls, add once more for roof and again for second story floor.
130 x 6 = 780 2x4s.
or $7.70 per 2x4 for $6k.
Only if it's oak.