Expect $2,000–$5,000 for a typical insulated 9′×7′ overhead door installed; 10′×10′ often $3,000–$6,000; large 12′×12′ or commercial roll-ups ~$3,500–$8,000+. A steel man door usually runs ~$500–$1,200 installed.
Simple steel endwalls can add ~$1,500–$4,000 each; framed endwalls with openings ~$3,000–$10,000+. On whole projects, doors/endwalls commonly add ~$2–$8 per sq ft, driven by door size/quantity and framing.