9 Downloadable software featuring an interactive platform that allows users to view, navigate through, and share with others, 3-dimensional structural models and 2-dimensional floor plans of residential, commercial and industrial buildings; downloadable software featuring an interactive viewing platform for 3-dimensional structural models and 2-dimensional floor plans of residential, commercial and industrial buildings, that allows users to change the visibility and transparency of components in the models and plans; downloadable software featuring an interactive viewing platform for 3-dimensional structural models and 2-dimensional floor plans of residential, commercial and industrial buildings, that allows users to select components in the models and plans to obtain dimensions, product information, placement specifications, and connection requirements; downloadable software featuring an interactive viewing platform for 3-dimensional structural models and 2-dimensional floor plans of residential, commercial and industrial buildings, that allows users to select penetrations in joists and beams to obtain size and placement dimensions