Industry: 3271—Concrete Block and Brick
Establishments primarily engaged in manufacturing concrete building block and brick from a combination of cement and aggregate. Contractors engaged in concrete construction work are classified in Division C, Construction, and establishments primarily engaged in mixing and delivering ready-mixed concrete are classified in Industry 3273.

Architecture block concrete: e.g. fluted, screen, split, slump, ground facePaving block, concrete
Blocks, concrete and cinderPlinth blocks, precast terrazzo
Brick, concrete
Codes Titles Total Marketable US Businesses
3271Concrete Block and Brick803
327100Concrete block and brick204
32710000Concrete block and brick204
327199Concrete block and brick, nec599
32719901Architectural concrete: block, split, fluted, screen, etc.32
32719902Blocks, concrete or cinder: standard309
32719903Blocks, concrete: acoustical4
32719904Blocks, concrete: chimney or fireplace13
32719905Blocks, concrete: drystack interlocking13
32719906Blocks, concrete: glazed face1
32719907Blocks, concrete: heat absorbing1
32719908Blocks, concrete: insulating12
32719909Blocks, concrete: landscape or retaining wall146
32719910Blocks, concrete: radiation-proof1
32719911Brick, concrete27
32719912Paving blocks, concrete30
32719913Plinth blocks, precast terrazzo1
32719914Roof ballast block, concrete2
32719915Sewer and manhole block, concrete7