• Division 1: General Requirements
• Division 2: Existing Conditions
• Division 3: Concrete
• Division 4: Masonry
• Division 5: Metals
• Division 6: Wood, Plastics and Composites
• Division 7: Thermal and Moisture Protection
• Division 8: Openings
• Division 9: Finishes (interior finishes)
• Division 10: Specialties (for example, signs, toilet accessories)
• Division 11: Equipment (for example, kitchen equipment)
• Division 12: Furnishings
• Division 13: Special Construction (for example, greenhouses)
• Division 14: Conveying Equipment (elevators, escalators, lifts)
• Division 21: Fire Suppression
• Division 22: Plumbing
• Division 23: Heating, Ventilating and Air Conditioning
• Division 26: Electrical
• Division 27: Communications
• Division 28: Electronic Safety and Security
• Division 31: Earthwork
• Division 32: Exterior Improvements
• Division 33: Utilities

Click here for a full list of MasterFormat 2004 specification section numbers