Mills primarily engaged in manufacturing excelsior, wood shingles, and cooperage stock; and in sawing special products, not elsewhere classified.
- Barrel heading and staves, sawed or split
- Cooperage stock mills
- Cooperage stock: staves, heading, and hoops sawed or split
- Excelsior, including pads and wrappers: wood
- Hoops, wood: for tight or slack cooperage-sawed or split
- Sawmills, special product: except lumber and veneer mills
- Shakes (hand split shingles)
- Shingle mills, wood
- Shingles, wood: sawed or hand split
- Wood wool (excelsior)
- Wrappers, excelsior