Built elements (``BLT``) ======================== The ability to model various building and infrastructure elements, including walls, floors, roofs, stairs, doors, windows, columns, road pavements, bridge decks, railway track elements, etc. .. toctree:: :titlesonly: BLT000_Built-elements BLT001_Correct-use-of-operation-type-attributes-for-doors BLT002_Correct-use-of-partitioning-type-attributes-for-windows BLT003_Stair-decomposition