A veteran-owned Texas manufacturer of hollow metal doors and frames whose fire-rated assemblies are tested to UL 10B and UL 10C and labelled by Underwriters Laboratories and Warnock Hersey, conforming to Steel Door Institute standards. Alongside fire doors it builds acoustic, bullet-resistant, blast-resistant, hurricane and IMO marine doorsets, so openings with more than one performance requirement can be specified as a single certificated assembly.