Warehouse/distribution: S-1 (moderate hazard storage) or S-2 (low hazard). Clear heights: 28-40 ft (Amazon-style fulfillment 40+ ft). Construction: tilt-up concrete panels or steel frame with metal panels. Span: 50-150 ft clear. Floor: 6-8 in reinforced slab, flatness FF50/FL25 for VNA (very narrow aisle). Dock doors: 9x10 ft, dock levelers, seals. Fire: sprinklers per NFPA 13 with storage-specific design (ESFR, in-rack). Budget: $80-$200/sf. Timeline: 8-18 months.