This Annual Survey of Manufactures (ASM) rollup industry comprises establishments primarily engaged in the following North American Industry Classification System (NAICS) U.S. industries:

1. 321911 Wood Window and Door Manufacturing;
2. 321912 Cut Stock, Resawing Lumber, and Planing; and
3. 321918 Other Millwork (including Flooring).

321911 Wood Window and Door Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing window and door units, sash, window and door frames, and doors from wood or wood clad with metal or plastics.

321912 Cut Stock, Resawing Lumber, and Planing

This U.S. industry comprises establishments primarily engaged in one or more of the following manufacturing activities:

1. dimension lumber from purchased lumber;
2. dimension stock (i.e., shapes) or cut stock;
3. resawing the output of sawmills; and
4. planing purchased lumber.

These establishments generally use woodworking machinery, such as jointers, planers, lathes, and routers to shape wood.

321918 Other Millwork (including Flooring)

This U.S. industry comprises establishments primarily engaged in manufacturing millwork (except wood windows, wood doors, and cut stock).