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The emergence of off-site construction has shifted many construction activities from job sites to controlled factory environments, enabling the extensive use of automated machines in the fabrication of construction-oriented products (such as fame assemblies). When using highly automated machines in agile manufacturing, the process planning becomes the bottleneck since it is mostly manual, experienced-based, and error prone. Even though the manufacturability was proven to be automatically evaluated for 2D wood-framed assemblies, many construction-oriented products, such as steel-framed assemblies, have three-dimensional features that have not yet been accounted for. This paper extends the previously developed 2D framework for 3D applications as required in steel-framed assemblies, in order to automatically check the manufacturability of steel frame assemblies given the building information model …