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The NIST National Fire Research Laboratory (NFRL) is a unique facility used to conduct real scale fire measurements. In 2015, the NFRL was expanded to enable research on the response of real-scale structural systems to realistic fire and mechanical loading under controlled laboratory conditions. The scientific objectives of the expanded NFRL are to develop an experimental database on the performance of materials, components, connections, assemblies, and systems under fire load. This data can be used by the international research community to validate and verify physics-based predictive models. The lab features two high bay test areas, a 18 m × 27 m strong floor with 1218 anchor points, a 9 m × 18 m strong wall with 420 anchor points, a hydraulic loading system, four large exhaust hoods instrumented for fire calorimetry, an emission control system for scrubbing acid gases and particles generated …