SIC 2411 Logging

This category covers establishments primarily engaged in cutting timber and in producing rough, round, hewn, or riven primary forest or wood raw materials, or in producing wood chips in the field. Independent contractors engaged in estimating or trucking lumber, but who perform no cutting operations, are classified in nonmanufacturing industries.

SIC 2421 Sawmills and Planing Mills, General

This industry includes establishments primarily engaged in sawing rough lumber and timber from logs and bolts, or resawing cants and flitches into lumber, including box lumber and softwood cut stock; planing mills combined with sawmills; and separately operated planing mills that are engaged primarily in producing surfaced lumber and standard workings or patterns of lumber. The industry also includes establishments primarily engaged in sawing lath and railroad ties and in producing tobacco hogshead stock, wood chips, and snow fence lath.

SIC 2426 Hardwood Dimension and Flooring Mills

This classification consists of companies that primarily make hardwood dimension lumber and workings there from and other hardwood dimension, semifabricated or ready for assembly; hardwood flooring; and wood frames for household furniture. Companies that primarily make stairwork, molding, and trim are classified in SIC 2431: Millwork; and those making textile machinery bobbins, picker sticks, and shuttles are classified in SIC 3552: Textile Machinery.

SIC 2429 Special Product Sawmills, Not Elsewhere Classified

This industry classification includes mills, not elsewhere classified, that make excelsior (wood shavings used for packing or stuffing), wood shingles, and cooperage stock; or mills that make specially sawed products. This category also includes companies that make pads and wrappers made from wood excelsior, and makers of all types of wood shingles and shakes.

SIC 2431 Millwork

This category covers establishments primarily engaged in manufacturing fabricated wood millwork, including wood millwork covered with materials such as metal and plastics. Planing mills primarily engaged in producing millwork are included in this industry, but planning mills primarily producing standard workings or patterns of lumber are classified in SIC 2421: Sawmills and Planing Mills, General.

SIC 2434 Wood Kitchen Cabinets

This industry includes establishments primarily engaged in manufacturing wood kitchen cabinets and wood bathroom vanities, generally for permanent installation. Establishments primarily engaged in manufacturing free-standing cabinets and vanities are classified in various furniture-manufacturing industries.

SIC 2435 Hardwood Veneer and Plywood

This classification covers establishments primarily engaged in producing commercial hardwood veneer and those primarily engaged in manufacturing commercial plywood or prefinished hardwood plywood. This includes nonwood backed or faced veneer and nonwood faced plywood, constructed from veneer produced in the same establishment or from purchased veneer.

SIC 2436 Softwood Veneer and Plywood

This classification includes establishments primarily engaged in producing commercial softwood veneer and plywood from veneer produced in the same establishment or from purchased veneer. Establishments primarily engaged in producing commercial hardwood veneer and plywood are classified elsewhere in SIC 2435: Hardwood Veneer and Plywood.

SIC 2439 Structural Members, Not Elsewhere Classified

This classification covers establishments primarily engaged in producing laminated or fabricated trusses, arches, and other structural members of lumber. Establishments primarily engaged in fabrication on the site of construction are classified in Division C, Construction.

SIC 2441 Nailed and Lock Corner Wood Boxes and Shook

This industry classification includes companies that are primarily engaged in the production of nailed and lock corner wood boxes (lumber or plywood) and shook for nailed and lock corner boxes.

SIC 2448 Wood Pallets and Skids

This classification covers establishments primarily engaged in manufacturing wood or wood and metal combination pallets and skids.

SIC 2449 Wood Containers, Not Elsewhere Classified

This industry classification includes companies that primarily make wood containers, not elsewhere classified, such as cooperage, wirebound boxes and crates, and other veneer and plywood containers. Companies that primarily make tobacco hogshead stock are in SIC 2421: Sawmills and Planing Mills, General and those making cooperage stock are in SIC 2429: Special Product Sawmills, Not Elsewhere Classified.

SIC 2451 Mobile Homes

This category covers establishments primarily engaged in manufacturing mobile homes and nonresidential mobile buildings. These units are generally more than 35 feet long, at least 8 feet wide, and often are equipped with wheels.

SIC 2452 Prefabricated Wood Buildings and Components

Companies that primarily make prefabricated wood buildings, sections, and panels make up the prefabricated wood buildings and components industry. Manufactured and mobile homes delivered to a site are not part of this industry.

SIC 2491 Wood Preserving

The wood preserving industry is comprised of establishments primarily engaged in treating wood—sawed or planed in other establishments—with creosote or other preservatives to prevent decay and protect against fire and insects. The industry also cuts, treats, and sells poles, posts, and pilings; however, establishments primarily engaged in manufacturing other wood products, which they may also treat with preservatives, are classified elsewhere.

SIC 2493 Reconstituted Wood Products

The reconstituted wood products industry is comprised of establishments primarily engaged in manufacturing hardboard, particleboard, insulation board, medium-density fiberboard (MDF), waferboard, oriented strand board (OSB), and other panelized products made from wood chips and particles.

SIC 2499 Wood Products, Not Elsewhere Classified

This category includes establishments primarily engaged in manufacturing miscellaneous wood products, not elsewhere classified, and products made from rattan, reed, splint, straw, veneer, veneer strips, wicker, and willow.