Shop professional building wire for residential and commercial electrical installations. Our UL Listed building wire meets all NEC requirements and is available in multiple wire gauges stranded copper conductors.
Building wire is designed for permanent installation in conduit, raceways, and cable trays throughout homes, offices, and industrial facilities. THHN wire features heat-resistant thermoplastic insulation rated for 90°C dry locations, while THWN-2 adds moisture resistance for wet location installations. Dual-rated THHN/THWN-2 wire provides maximum versatility for all applications.
Available in multiple colors for proper circuit identification, our building wire features annealed copper conductors and compact diameters that maximize conduit fill capacity. Every product is UL 83 certified and CSA approved for code-compliant electrical wiring in branch circuits, feeder cables, control panels, and general power distribution systems.
