Includes
Expanded Metal Lath; Airplane Landing Mats; Traction Mats.

Possible NAICS Codes
423610 – Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
339999 – All Other Miscellaneous Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing

Includes
Prefabricated Panels; Inflatable Shelters; Metal Screens and Metal Windows.

Possible NAICS Codes
332311 – Prefabricated Metal Building and Component Manufacturing
332312 – Fabricated Structural Metal Manufacturing
321992 – Prefabricated Wood Building Manufacturing
562991 – Septic Tank and Related Services
336412 – Aircraft Engine and Engine Parts Manufacturing
337127 – Institutional Furniture Manufacturing
531120 – Lessors of Nonresidential Buildings (except Miniwarehouses)
321991 – Manufactured Home (Mobile Home) Manufacturing
238990 – All Other Specialty Trade Contractors
327390 – Other Concrete Product Manufacturing

Possible NAICS Codes
237990 – Other Heavy and Civil Engineering Construction
236220 – Commercial and Institutional Building Construction
238990 – All Other Specialty Trade Contractors
237310 – Highway, Street, and Bridge Construction
562910 – Remediation Services
238110 – Poured Concrete Foundation and Structure Contractors
238910 – Site Preparation Contractors
237110 – Water and Sewer Line and Related Structures Construction
238190 – Other Foundation, Structure, and Building Exterior Contractors
237130 – Power and Communication Line and Related Structures Construction

Includes
Bleachers; Grandstands.

Possible NAICS Codes
423310 – Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
423610 – Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
332311 – Prefabricated Metal Building and Component Manufacturing
332312 – Fabricated Structural Metal Manufacturing

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
237990 – Other Heavy and Civil Engineering Construction
238990 – All Other Specialty Trade Contractors
237310 – Highway, Street, and Bridge Construction
561210 – Facilities Support Services
238210 – Electrical Contractors and Other Wiring Installation Contractors
237110 – Water and Sewer Line and Related Structures Construction
238910 – Site Preparation Contractors
238190 – Other Foundation, Structure, and Building Exterior Contractors
238290 – Other Building Equipment Contractors

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238160 – Roofing Contractors
238990 – All Other Specialty Trade Contractors
561210 – Facilities Support Services
238320 – Painting and Wall Covering Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
237310 – Highway, Street, and Bridge Construction
238290 – Other Building Equipment Contractors

Includes
Prefabricated Concrete Placing Forms; Builders' Ladders and Stepladders; Suspension stages.

Excludes
Aircraft Ladders (FSC 1730); Fire Fighting Ladders (FSC 4210); Maintenance Ladders (FSC 4940); Marine Vessel Ladders (FSC 2090); Vehicle Ladders (FSC 2540).

Possible NAICS Codes
532490 – Other Commercial and Industrial Machinery and Equipment Rental and Leasing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
332311 – Prefabricated Metal Building and Component Manufacturing
327331 – Concrete Block and Brick Manufacturing
336611 – Ship Building and Repairing
327390 – Other Concrete Product Manufacturing
322211 – Corrugated and Solid Fiber Box Manufacturing
332510 – Hardware Manufacturing
332323 – Ornamental and Architectural Metal Work Manufacturing

Includes
Ingots; Pigs; Billets; Blooms; Muck Bar; Rods for Wire; Sheet Bar; Skelp; Tube Rounds.

Notes
Only bulk material will be identified in this class. a. Primary products are raw unfinished ingots, pigs, that require refinement to be usable. b. Semi-finished items are primary products that have been refined to a state that requires further manufacturing processes to its final, usable state.

Possible NAICS Codes
332312 – Fabricated Structural Metal Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
332111 – Iron and Steel Forging
331210 – Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
331221 – Rolled Steel Shape Manufacturing
333514 – Special Die and Tool, Die Set, Jig, and Fixture Manufacturing
332311 – Prefabricated Metal Building and Component Manufacturing
331513 – Steel Foundries (except Investment)
423510 – Metal Service Centers and Other Metal Merchant Wholesalers

Description
Installation of Equipment: Prefabricated Structures and Scaffolding

Possible NAICS Codes
238390 – Other Building Finishing Contractors
332311 – Prefabricated Metal Building and Component Manufacturing
238990 – All Other Specialty Trade Contractors
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
337215 – Showcase, Partition, Shelving, and Locker Manufacturing
236220 – Commercial and Institutional Building Construction
332312 – Fabricated Structural Metal Manufacturing
327390 – Other Concrete Product Manufacturing
321992 – Prefabricated Wood Building Manufacturing
238120 – Structural Steel and Precast Concrete Contractors

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
238160 – Roofing Contractors
236210 – Industrial Building Construction
238990 – All Other Specialty Trade Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
237990 – Other Heavy and Civil Engineering Construction
238220 – Plumbing, Heating, and Air-Conditioning Contractors

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
561210 – Facilities Support Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238160 – Roofing Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
238990 – All Other Specialty Trade Contractors
238320 – Painting and Wall Covering Contractors
238330 – Flooring Contractors

Description
Tile, Brick, and Block

Includes
Concrete Building Block; Cinder Block; Slag Brick; Cut Stone; Cut and Polished Stone; Ceramic Floor and Wall Tile; Architectural Terra Cotta; Concrete Slabs and Grilles.

Excludes
Glass Building Block (FSC 9340)

Possible NAICS Codes
327331 – Concrete Block and Brick Manufacturing
238340 – Tile and Terrazzo Contractors
238990 – All Other Specialty Trade Contractors
327390 – Other Concrete Product Manufacturing
314110 – Carpet and Rug Mills
423320 – Brick, Stone, and Related Construction Material Merchant Wholesalers
327120 – Clay Building Material and Refractories Manufacturing
327991 – Cut Stone and Stone Product Manufacturing
238110 – Poured Concrete Foundation and Structure Contractors
236220 – Commercial and Institutional Building Construction

Includes
Bar Size Shapes (under 3 inches); Metal Piles and Piling; Angles; Channels; Tees; Zees.

Excludes
Plate, Sheet and Strip Materials (FSC 9515).

Notes
This class contains bulk material only. Specially designed items should be placed in a more appropriate class. This class includes items usually used in building, bridge and similar construction, such as, I beams, angles, and the like.

Possible NAICS Codes
332111 – Iron and Steel Forging
331221 – Rolled Steel Shape Manufacturing
332312 – Fabricated Structural Metal Manufacturing
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
332710 – Machine Shops
488190 – Other Support Activities for Air Transportation
326220 – Rubber and Plastics Hoses and Belting Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
237130 – Power and Communication Line and Related Structures Construction
238160 – Roofing Contractors
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
237990 – Other Heavy and Civil Engineering Construction
238990 – All Other Specialty Trade Contractors
541360 – Geophysical Surveying and Mapping Services
237310 – Highway, Street, and Bridge Construction
238320 – Painting and Wall Covering Contractors

Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
237130 – Power and Communication Line and Related Structures Construction
238160 – Roofing Contractors
238990 – All Other Specialty Trade Contractors
237310 – Highway, Street, and Bridge Construction
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
236210 – Industrial Building Construction
237990 – Other Heavy and Civil Engineering Construction
238120 – Structural Steel and Precast Concrete Contractors