Includes
Asphalt; Cinders; Gravel; Lime; Sand; Rough Dimension Stone, including Rubble; Cement; Ballast.

Excludes
Block, Shaped; Brick.

Possible NAICS Codes
212321 – Construction Sand and Gravel Mining
423710 – Hardware Merchant Wholesalers
327320 – Ready-Mix Concrete Manufacturing
212312 – Crushed and Broken Limestone Mining and Quarrying
212319 – Other Crushed and Broken Stone Mining and Quarrying
324121 – Asphalt Paving Mixture and Block Manufacturing
327992 – Ground or Treated Mineral and Earth Manufacturing
327999 – All Other Miscellaneous Nonmetallic Mineral Product Manufacturing
423320 – Brick, Stone, and Related Construction Material Merchant Wholesalers
327991 – Cut Stone and Stone Product Manufacturing

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

Description
Landscaping/Groundskeeping Services

Possible NAICS Codes
561730 – Landscaping Services
561210 – Facilities Support Services
812220 – Cemeteries and Crematories
561720 – Janitorial Services

Description
Installation of Equipment: Miscellaneous

Possible NAICS Codes
238210 – Electrical Contractors and Other Wiring Installation Contractors
811210 – Electronic and Precision Equipment Repair and Maintenance
541519 – Other Computer Related Services
238290 – Other Building Equipment Contractors
238990 – All Other Specialty Trade Contractors
236220 – Commercial and Institutional Building Construction
334290 – Other Communications Equipment Manufacturing
237130 – Power and Communication Line and Related Structures Construction
561621 – Security Systems Services (except Locksmiths)
339950 – Sign Manufacturing

Description
Other Quality Control, Testing and Inspection Services: Miscellaneous

Possible NAICS Codes
541380 – Testing Laboratories and Services
488390 – Other Support Activities for Water Transportation
541330 – Engineering Services
541990 – All Other Professional, Scientific, and Technical Services
541350 – Building Inspection Services
561210 – Facilities Support Services
237120 – Oil and Gas Pipeline and Related Structures Construction
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
541620 – Environmental Consulting Services
541690 – Other Scientific and Technical Consulting Services

Includes
Angles; Channels; Tees; Zees.

Possible NAICS Codes
332112 – Nonferrous Forging
488190 – Other Support Activities for Air Transportation
331491 – Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
331110 – Iron and Steel Mills and Ferroalloy Manufacturing
333924 – Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
562920 – Materials Recovery Facilities
326220 – Rubber and Plastics Hoses and Belting Manufacturing

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
322211 – Corrugated and Solid Fiber Box Manufacturing
327390 – Other Concrete Product Manufacturing
332510 – Hardware Manufacturing
332323 – Ornamental and Architectural Metal Work Manufacturing

Includes
Brickmaking Machinery.

Possible NAICS Codes
327390 – Other Concrete Product Manufacturing
238110 – Poured Concrete Foundation and Structure Contractors
327331 – Concrete Block and Brick Manufacturing
327320 – Ready-Mix Concrete Manufacturing
212321 – Construction Sand and Gravel Mining
444180 – Other Building Material Dealers
423310 – Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
212312 – Crushed and Broken Limestone Mining and Quarrying
333120 – Construction Machinery Manufacturing
238990 – All Other Specialty Trade Contractors