Special trade contractors primarily engaged in masonry work, stone setting, and other stone work. Special trade contractors primarily engaged in concrete work are classified in Industry 1771; those engaged in digging foundations are classified in Industry 1794; and those engaged in the construction of streets, highways, and alleys are classified in Industry 1611.

  • Bricklaying-contractors
  • Chimney construction and maintenance-contractors
  • Concrete block laying-contractors
  • Foundations, building of: block, stone, or brick-contractors
  • Marble work, exterior construction-contractors
  • Masonry-contractors
  • Refactory brick construction-contractors
  • Retaining wall construction: block, stone, or brick-contractors
  • Stone setting-contractors
  • Stonework erection-contractors
  • Tuck pointing-contractors