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MasterFormat Specification Divisions (CURRENT)

The Construction Specifications Institute (CSI) publishes the MasterFormat, which is the standard that is used most often for formatting construction specifications. The CSI website has a PDF containing the full list of MasterFormat Divisions and Sub-levels. Below is a list of divisions and the first level of sub-divisions of MasterFormat.

We have also made the old system 1995 MasterFormat divisions available.

Jump to Division:
00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 21 | 22
23 | 25 | 26 | 27 | 28 | 31 | 32 | 33 | 34 | 35 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 48

    Division 00 - Procurement and Contracting Requirements
  • 00 00 00 - Procurement and Contracting Requirements
  • 00 10 00 - Solicitation
  • 00 20 00 - Instructions for Procurement
  • 00 30 00 - Available Information
  • 00 40 00 - Procurement Forms and Supplements
  • 00 50 00 - Contracting Forms and Supplements
  • 00 60 00 - Project Forms
  • 00 70 00 - Conditions of the Contract
  • 00 80 00 - Unassigned
  • 00 90 00 - Revisions, Clarifications, and Modifications
    Division 01 - General Requirements
  • 01 00 00 - General Requirements
  • 01 10 00 - Summary
  • 01 20 00 - Price and Payment Procedures
  • 01 30 00 - Administrative Requirements
  • 01 40 00 - Quality Requirements
  • 01 50 00 - Temporary Facilities and Controls
  • 01 60 00 - Product Requirements
  • 01 70 00 - Execution and Closeout Requirements
  • 01 80 00 - Performance Requirements
  • 01 90 00 - Life Cycle Activities
    Division 02 - Existing Conditions
  • 02 00 00 - Existing Conditions
  • 02 10 00 - Unassigned
  • 02 20 00 - Assessment
  • 02 30 00 - Subsurface Investigation
  • 02 40 00 - Demolition and Structure Moving
  • 02 50 00 - Site Remediation
  • 02 60 00 - Contaminated Site Material Removal
  • 02 70 00 - Water Remediation
  • 02 80 00 - Facility Remediation
  • 02 90 00 - Unassigned
    Division 03 - Concrete
  • 03 00 00 - Concrete
  • 03 10 00 - Concrete Forming and Accessories
  • 03 20 00 - Concrete Reinforcing
  • 03 30 00 - Cast-in-Place Concrete
  • 03 40 00 - Precast Concrete
  • 03 50 00 - Cast Decks and Underlayment
  • 03 60 00 - Grouting
  • 03 70 00 - Mass Concrete
  • 03 80 00 - Concrete Cutting and Boring
  • 03 90 00 - Unassigned
    Division 04 - Masonry
  • 04 00 00 - Masonry
  • 04 10 00 - Unassigned
  • 04 20 00 - Unit Masonry
  • 04 30 00 - Unassigned
  • 04 40 00 - Stone Assemblies
  • 04 50 00 - Refractory Masonry
  • 04 60 00 - Corrosion-Resistant Masonry
  • 04 70 00 - Manufactured Masonry
  • 04 80 00 - Unassigned
  • 04 90 00 - Unassigned
    Division 05 - Metals
  • 05 00 00 - Metals
  • 05 10 00 - Structural Metal Framing
  • 05 20 00 - Metal Joists
  • 05 30 00 - Metal Decking
  • 05 40 00 - Cold-Formed Metal Framing
  • 05 50 00 - Metal Fabrications
  • 05 60 00 - Unassigned
  • 05 70 00 - Decorative Metal
  • 05 80 00 - Unassigned
  • 05 90 00 - Unassigned
    Division 06 - Wood, Plastics, Composites
  • 06 00 00 - Wood, Plastics, Composites
  • 06 10 00 - Rough Carpentry
  • 06 20 00 - Finish Carpentry
  • 06 30 00 - Unassigned
  • 06 40 00 - Architectural Woodwork
  • 06 50 00 - Structural Plastics
  • 06 60 00 - Plastic Fabrications
  • 06 70 00 - Structural Composites
  • 06 80 00 - Composite Fabrications
  • 06 90 00 - Unassigned
    Division 07 - Thermal and Moisture Protection
  • 07 00 00 - Thermal and Moisture Protection
  • 07 10 00 - Dampproofing and Waterproofing
  • 07 20 00 - Thermal Protection
  • 07 25 00 - Weather Barriers
  • 07 30 00 - Steep Slope Roofing
  • 07 40 00 - Roofing and Siding Panels
  • 07 50 00 - Membrane Roofing
  • 07 60 00 - Flashing and Sheet Metal
  • 07 70 00 - Roof and Wall Specialties and Accessories
  • 07 80 00 - Fire and Smoke Protection
  • 07 90 00 - Joint Protection
    Division 08 - Openings
  • 08 00 00 - Openings
  • 08 10 00 - Doors and Frames
  • 08 20 00 - Unassigned
  • 08 30 00 - Specialty Doors and Frames
  • 08 40 00 - Entrances, Storefronts, and Curtain Walls
  • 08 50 00 - Windows
  • 08 60 00 - Roof Windows and Skylights
  • 08 70 00 - Hardware
  • 08 80 00 - Glazing
  • 08 90 00 - Louvers and Vents
    Division 09 - Finishes
  • 09 00 00 - Finishes
  • 09 10 00 - Unassigned
  • 09 20 00 - Plaster and Gypsum Board
  • 09 30 00 - Tiling
  • 09 40 00 - Unassigned
  • 09 50 00 - Ceilings
  • 09 60 00 - Floorings
  • 09 70 00 - Wall Finishes
  • 09 80 00 - Acoustic Treatment
  • 09 90 00 - Painting and Coating
    Division 10 - Specialties
  • 10 00 00 - Specialties
  • 10 10 00 - Information Specialties
  • 10 20 00 - Interior Specialties
  • 10 30 00 - Fireplaces and Stoves
  • 10 40 00 - Safety Specialties
  • 10 50 00 - Storage Specialties
  • 10 60 00 - Unassigned
  • 10 70 00 - Exterior Specialties
  • 10 80 00 - Other Specialties
  • 10 90 00 - Unassigned
    Division 11 - Equipment
  • 11 00 00 - Equipment
  • 11 10 00 - Vehicle and Pedestrian Equipment
  • 11 15 00 - Security, Detention, and Banking Equipment
  • 11 20 00 - Commercial Equipment
  • 11 30 00 - Residential Equipment
  • 11 40 00 - Foodservice Equipment
  • 11 50 00 - Educational and Scientific Equipment
  • 11 60 00 - Entertainment Equipment
  • 11 65 00 - Athletic and Recreational Equipment
  • 11 70 00 - Healthcare Equipment
  • 11 80 00 - Collection and Disposal Equipment
  • 11 90 00 - Other Equipment
    Division 12 - Furnishings
  • 12 00 00 - Furnishings
  • 12 10 00 - Art
  • 12 20 00 - Window Treatments
  • 12 30 00 - Casework
  • 12 40 00 - Furnishings and Accessories
  • 12 50 00 - Furniture
  • 12 60 00 - Multiple Seating
  • 12 70 00 - Unassigned
  • 12 80 00 - Unassigned
  • 12 90 00 - Other Furnishings
    Division 13 - Special Construction
  • 13 00 00 - Special Construction
  • 13 10 00 - Special Facility Components
  • 13 20 00 - Special Purpose Rooms
  • 13 30 00 - Special Structures
  • 13 40 00 - Integrated Construction
  • 13 50 00 - Special Instrumentation
  • 13 60 00 - Unassigned
  • 13 70 00 - Unassigned
  • 13 80 00 - Unassigned
  • 13 90 00 - Unassigned
    Division 14 - Conveying Equipment
  • 14 00 00 - Conveying Equipment
  • 14 10 00 - Dumbwaiters
  • 14 20 00 - Elevators
  • 14 30 00 - Escalators and Moving Walks
  • 14 40 00 - Lifts
  • 14 50 00 - Unassigned
  • 14 60 00 - Unassigned
  • 14 70 00 - Turntables
  • 14 80 00 - Scaffolding
  • 14 90 00 - Other Conveying Equipment
    Division 21 - Fire Suppression
  • 21 00 00 - Fire Suppression
  • 21 10 00 - Water-Based Fire-Suppression Systems
  • 21 20 00 - Fire-Extinguishing Systems
  • 21 30 00 - Fire Pumps
  • 21 40 00 - Fire Suppression Water Storage
  • 21 50 00 - Unassigned
  • 21 60 00 - Unassigned
  • 21 70 00 - Unassigned
  • 21 80 00 - Unassigned
  • 21 90 00 - Unassigned
    Division 22 - Plumbing
  • 22 00 00 - Plumbing
  • 22 10 00 - Plumbing Piping
  • 22 20 00 - Unassigned
  • 22 30 00 - Plumbing Equipment
  • 22 40 00 - Plumbing Fixtures
  • 22 50 00 - Pool and Fountain Plumbing Systems
  • 22 60 00 - Gas and Vacuum Systems for Laboratory and Healthcare Facilities
  • 22 70 00 - Unassigned
  • 22 80 00 - Unassigned
  • 22 90 00 - Unassigned
    Division 23 - Heating, Ventilating, and Air Conditioning (HVAC)
  • 23 00 00 - Heating, Ventilating, and Air Conditioning (HVAC)
  • 23 10 00 - Facility Fuel Systems
  • 23 20 00 - HVAC Piping and Pumps
  • 23 30 00 - HVAC Air Distribution
  • 23 40 00 - HVAC Air Cleaning Devices
  • 23 50 00 - Central Heating Equipment
  • 23 60 00 - Central Cooling Equipment
  • 23 70 00 - Central HVAC Equipment
  • 23 80 00 - Decentralized HVAC Equipment
  • 23 90 00 - Unassigned
    Division 25 - Integrated Automation
  • 25 00 00 - Integrated Automation
  • 25 10 00 - Integrated Automation Network Equipment
  • 25 20 00 - Unassigned
  • 25 30 00 - Integrated Automation Instrumentation and Terminal Devices
  • 25 40 00 - Unassigned
  • 25 50 00 - Integrated Automation Facility Controls
  • 25 60 00 - Unassigned
  • 25 70 00 - Unassigned
  • 25 80 00 - Unassigned
  • 25 90 00 - Integrated Automation Control Sequences
    Division 26 - Electrical
  • 26 00 00 - Electrical
  • 26 10 00 - Medium-Voltage Electrical Distribution
  • 26 20 00 - Low-Voltage Electrical Transmission
  • 26 30 00 - Facility Electrical Power Generating and Storing Equipment
  • 26 40 00 - Electrical and Cathodic Protection
  • 26 50 00 - Lighting
  • 26 60 00 - Unassigned
  • 26 70 00 - Unassigned
  • 26 80 00 - Unassigned
  • 26 90 00 - Unassigned
    Division 27 - Communications
  • 27 00 00 - Communications
  • 27 10 00 - Structured Cabling
  • 27 20 00 - Data Communications
  • 27 30 00 - Voice Communications
  • 27 40 00 - Audio-Video Communications
  • 27 50 00 - Distributed Communications and Monitoring Systems
  • 27 60 00 - Unassigned
  • 27 70 00 - Unassigned
  • 27 80 00 - Unassigned
  • 27 90 00 - Unassigned
    Division 28 - Electronic Safety and Security
  • 28 00 00 - Electronic Safety and Security
  • 28 10 00 - Electronic Access Control and Intrusion Detection
  • 28 20 00 - Electronic Surveillance
  • 28 30 00 - Electronic Detection and Alarm
  • 28 40 00 - Electronic Monitoring and Control
  • 28 50 00 - Unassigned
  • 28 60 00 - Unassigned
  • 28 70 00 - Unassigned
  • 28 80 00 - Unassigned
  • 28 90 00 - Unassigned
    Division 31 - Earthwork
  • 31 00 00 - Earthwork
  • 31 10 00 - Site Clearing
  • 31 20 00 - Earth Moving
  • 31 30 00 - Earthwork Methods
  • 31 40 00 - Shoring and Underpinning
  • 31 50 00 - Excavation Support and Protection
  • 31 60 00 - Special Foundations and Load-Bearing Elements
  • 31 70 00 - Tunneling and Mining
  • 31 80 00 - Unassigned
  • 31 90 00 - Unassigned
    Division 32 - Exterior Improvements
  • 32 00 00 - Exterior Improvements
  • 32 10 00 - Bases, Ballasts, and Paving
  • 32 20 00 - Unassigned
  • 32 30 00 - Site Improvements
  • 32 40 00 - Unassigned
  • 32 50 00 - Unassigned
  • 32 60 00 - Unassigned
  • 32 70 00 - Wetlands
  • 32 80 00 - Irrigation
  • 32 90 00 - Planting
    Division 33 - Utilities
  • 33 00 00 - Utilities
  • 33 10 00 - Water Utilities
  • 33 20 00 - Wells
  • 33 30 00 - Sanitary Sewerage Utilities
  • 33 40 00 - Storm Drainage Utilities
  • 33 50 00 - Fuel Distribution Utilities
  • 33 60 00 - Hydronic and Steam Energy Utilities
  • 33 70 00 - Electrical Utilities
  • 33 80 00 - Communications Utilities
  • 33 90 00 - Unassigned
    Division 34 - Transportation
  • 34 00 00 - Transportation
  • 34 10 00 - Guideways/Railways
  • 34 20 00 - Traction Power
  • 34 30 00 - Unassigned
  • 34 40 00 - Transportation Signaling and Control Equipment
  • 34 50 00 - Transportation Fare Collection Equipment
  • 34 60 00 - Unassigned
  • 34 70 00 - Transportation Construction and Equipment
  • 34 80 00 - Bridges
  • 34 90 00 - Unassigned
    Division 35 - Waterway and Marine Construction
  • 35 00 00 - Waterway and Marine Construction
  • 35 10 00 - Waterway and Marine Signaling and Control Equipment
  • 35 20 00 - Waterway and Marine Construction and Equipment
  • 35 30 00 - Coastal Construction
  • 35 40 00 - Waterway Construction and Equipment
  • 35 50 00 - Marine Construction and Equipment
  • 35 60 00 - Unassigned
  • 35 70 00 - Dam Construction and Equipment
  • 35 80 00 - Unassigned
  • 35 90 00 - Unassigned
    Division 40 - Process Integration
  • 40 00 00 - Process Integration
  • 40 10 00 - Gas and Vapor Process Piping
  • 40 20 00 - Liquids Process Piping
  • 40 30 00 - Solid and Mixed Materials Piping and Chutes
  • 40 40 00 - Process Piping and Equipment Protection
  • 40 50 00 - Unassigned
  • 40 60 00 - Unassigned
  • 40 70 00 - Unassigned
  • 40 80 00 - Commissioning of Process Systems
  • 40 90 00 - Instrumentation and Control for Process Systems
    Division 41 - Material Processing and Handling Equipment
  • 41 00 00 - Material Processing and Handling Equipment
  • 41 10 00 - Bulk Material Processing Equipment
  • 41 20 00 - Piece Material Handling Equipment
  • 41 30 00 - Manufacturing Equipment
  • 41 40 00 - Container Processing and Packaging
  • 41 50 00 - Material Storage
  • 41 60 00 - Mobile Plant Equipment
  • 41 70 00 - Unassigned
  • 41 80 00 - Unassigned
  • 41 90 00 - Unassigned
    Division 42 - Process Heating, Cooling, and Drying Equipment
  • 42 00 00 - Process Heating, Cooling, and Drying Equipment
  • 42 10 00 - Process Heating Equipment
  • 42 20 00 - Process Cooling Equipment
  • 42 30 00 - Process Drying Equipment
  • 42 40 00 - Unassigned
  • 42 50 00 - Unassigned
  • 42 60 00 - Unassigned
  • 42 70 00 - Unassigned
  • 42 80 00 - Unassigned
  • 42 90 00 - Unassigned
    Division 43 - Process Gas and Liquid Handling, Purification and Storage Equipment
  • 43 00 00 - Process Gas and Liquid Handling, Purification and Storage Equipment
  • 43 10 00 - Gas Handling Equipment
  • 43 20 00 - Liquid Handling Equipment
  • 43 30 00 - Gas and Liquid Purification Equipment
  • 43 40 00 - Gas and Liquid Storage
  • 43 50 00 - Unassigned
  • 43 60 00 - Unassigned
  • 43 70 00 - Unassigned
  • 43 80 00 - Unassigned
  • 43 90 00 - Unassigned
    Division 44 - Pollution and Waste Control Equipment
  • 44 00 00 - Pollution and Waste Control Equipment
  • 44 10 00 - Air Pollution Control
  • 44 20 00 - Noise Pollution Control
  • 44 30 00 - Odor Control
  • 44 40 00 - Water Pollution Control Equipment
  • 44 50 00 - Solid Waste Control and Reuse
  • 44 60 00 - Waste Thermal Processing Equipment
  • 44 70 00 - Unassigned
  • 44 80 00 - Unassigned
  • 44 90 00 - Unassigned
    Division 45 - Industry-Specific Manufacturing Equipment
  • 45 00 00 - Industry-Specific Manufacturing Equipment
    Division 46 - Water and Wastewater Equipment
  • 46 00 00 - Water and Wastewater Equipment
  • 46 10 00 - Unassigned
  • 46 20 00 - Water and Wastewater Preliminary Treatment Equipment
  • 46 30 00 - Water and Wastewater Chemical Feed Equipment
  • 46 40 00 - Water and Wastewater Clarification and Mixing Equipment
  • 46 50 00 - Water and Wastewater Secondary Treatment Equipment
  • 46 60 00 - Water and Wastewater Advanced Treatment Equipment
  • 46 70 00 - Water and Wastewater Residuals Handling and Treatment
  • 46 80 00 - Unassigned
  • 46 90 00 - Unassigned
    Division 48 - Electrical Power Generation
  • 48 00 00 - Electrical Power Generation
  • 48 10 00 - Electrical Power Generation Equipment
  • 48 20 00 - Unassigned
  • 48 30 00 - Unassigned
  • 48 40 00 - Unassigned
  • 48 50 00 - Unassigned
  • 48 60 00 - Unassigned
  • 48 70 00 - Electrical Power Generation Testing
  • 48 80 00 - Unassigned
  • 48 90 00 - Unassigned

 


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