NAICS 2022 nationalIndustry USA Verified: Census NAICS 2022 · 2026-01-01

NAICS 327120 — Clay Building Material and Refractories Manufacturing

Clay Building Material and Refractories Manufacturing

NAICS 327120 is the national industry code for clay building material and refractories manufacturing establishments in the United States. The Small Business Administration sets a size standard of 750 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.

SBA: 750 View full SBA standard

Official Inclusions

building material and refractories made of clay or other materials with similar properties

Official Illustrative Examples

Primary activities officially recognized by Census Bureau / Statistics Canada:

ceramic tile, floor and wall, manufacturing clay brick, manufacturing flue lining, clay, manufacturing refractories (e.g., block, brick, mortar, tile), manufacturing refractory cement and mortar, manufacturing structural clay tile, manufacturing

Complete Index of Activities (49 recognized activities) ▼

adobe brick, manufacturing

alumina fused refractories, manufacturing

aluminous refractory cement, manufacturing

architectural terra cotta, manufacturing

bauxite brick, manufacturing

blocks, fire clay, manufacturing

brick (i.e., common face, glazed, vitrified, hollow), clay, manufacturing

brick, clay refractory, manufacturing

brick, nonclay (e.g., chrome, magnesite, silica) refractory, manufacturing

building material and refractories made of clay or other materials with similar properties

building tile, clay, manufacturing

carbon brick, manufacturing

castable refractories, clay, manufacturing

castable refractories, nonclay, manufacturing

ceramic tile, floor and wall, manufacturing

chrome brick, manufacturing

clay brick, manufacturing

clay refractories (e.g., block, brick, mortar, tile), manufacturing

conduit, vitrified clay, manufacturing

coping, wall, clay, manufacturing

crucibles, fire clay, manufacturing

crucibles, graphite, magnesite, chrome, silica or other nonclay materials, manufacturing

fire brick, clay refractories, manufacturing

floaters, glasshouse, clay, manufacturing

flue lining, clay, manufacturing

glasshouse refractories, manufacturing

graphite refractories, manufacturing

insulating firebrick and shapes, clay, manufacturing

kiln furniture, clay, manufacturing

liner brick and plates, vitrified clay, manufacturing

magnesia refractory cement, manufacturing

magnesite refractories, manufacturing

mortars, clay refractory, manufacturing

mortars, nonclay refractory, manufacturing

mosaic tile, ceramic, manufacturing

nonclay refractories (e.g., block, brick, mortar, tile), manufacturing

paving brick, clay, manufacturing

pipe, chimney, clay, manufacturing

pots, glasshouse, clay refractory, manufacturing

quarry tile, clay, manufacturing

refractories (e.g., block, brick, mortar, tile), manufacturing

refractory cement and mortar, manufacturing

refractory cement and mortar, nonclay, manufacturing

sewer pipe and fittings, clay, manufacturing

silica refractories, manufacturing

stove lining, clay, manufacturing

structural clay tile, manufacturing

tile and pipe, sewer, clay, manufacturing

tile, roofing and drain, clay, manufacturing

Official data

Feature	Description
Official name	North American Industry Classification System (NAICS) 2022
Issuing authority	U.S. Census Bureau with OMB, Statistics Canada, and INEGI
Tax authority	Internal Revenue Service (IRS)
Purpose	Statistical business classification and federal contracting (SAM.gov, SBA standards)
Used in	SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk)
Active since	2022 (current edition)
Hierarchy level	Sector (2-digit)
Source	https://www.census.gov/naics/