NAICS 332312: Fabricated Structural Metal Manufacturing

Structural steel fabricators cut, drill, fit and weld beams, columns, stairs, platforms, railings and plate work for buildings, bridges and industrial plants. Their jobs come from bidding steel packages put out by general contractors and erectors, so their sales cycle follows construction schedules. They buy steel shapes and plate, beam lines, saws, welding equipment, cranes, coatings and detailing software. Decisions sit with the owner, an estimator or a project manager, and suppliers sell to them through steel service centers, equipment dealers and direct contact with the estimating team.

NAICS 332312 is the North American Industry Classification System code for Fabricated Structural Metal Manufacturing, a national industry in the Plate Work and Fabricated Structural Product Manufacturing NAICS industry (33231) of the Manufacturing sector (31-33).

In Factur's 2026 prospecting data, metal fabrication, sheet metal and stamping suppliers turned 49 of 287 quotes into purchase orders, 17%. Compare all five segments: Manufacturing sales by segment, 2026.