What type of section is taken lengthwise through a building?

A longitudinal section is taken lengthwise through a building, offering a view along the length of the structure. This type of section displays the arrangement of spaces, rooms, and structural components from one end of the building to the other. It allows the reader to understand the spatial relationships and flow of the design more effectively.

In architectural and engineering drawings, a longitudinal section is particularly helpful for visualizing features such as staircases, hallways, and other longitudinal elements that span the full length of the building. By slicing through the building in this manner, it provides essential insights into how the spaces are utilized and how various levels relate to one another throughout the structure.