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A section drawing is a vertical- cut through of a space or object (Figure 43). Typical section drawings can be drawn of an entire building, individual interior space, or object such as built-in cabinet (Figures 44 & 45). Sections of spaces in interior drawings are sometimes confused with interior elevations and details. Section drawings for spaces may illustrate similar items as elevation drawings. But section drawings are different from elevation drawings in that they are primarily intended to show the construction of the wall, floor, ceiling, or the object being cut through. Sections aim to show relationships of how different parts are constructed together in a space rather than the items attached to walls. So, a section drawing also presents the construction elements that create the boundaries of spaces, while as an elevation drawing focuses on the characteristics of the surfaces of the boundaries represented as single lines on the drawing. When a cut-through line is very close to the objects, not inside the objects, it usually gets to illustrate vertical shapes as shown on elevation drawings, causing confusion between a section and elevation. Figure 43 Concept of section drawings

When sections are cut through small portions of a space or object, they are often referred to as section details or details. However, a section drawing is different from these drawings in that a section drawing typically refers to a drawing that cuts through a single space, many spaces on a single floor, or an entire building. Detail drawings are not always drawn in section and may include an enlarged drawing of the floor plan or elevation (See Figure 47 Interior Detail Drawings).

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