He broke down light-gauge vs. rigid frame construction, why light-gauge stays cheapest for standard 30x50 units ($25-30/SF vs. $35-40/SF), and exactly when it stops making sense: wider bays, heavier tenant loads, or a municipality demanding a more commercial look.
He also covered the details that quietly affect long-term cost, door sizing, insulation choices, and how CMU and tilt-wall stack up when steel won't cut it.
If you're deciding how to build your next project, this one's a real cost-versus-flexibility framework from someone who's built hundreds of these.