Steel Core Structures 40x60x12 commercial building (customizable)July 23, 2026By 0 Comments ✅ Fully Customizable. 40’ x 60’ (Vertical Roof). • (1) 36” x 80” 9-Lite Walk-In Door. ✅ Built for Quality & Durability. 12’ Leg Height. 🧱 Professional Installation Included. Share This