Sections

A section is a slice through an object, either vertically or horizontally. Its purpose is to show how an item is put together. Sections are common drawings in architectural drafting. When a section is made through just part of an object, it’s called a detail. See this drawing in my book, Drafting and Visual Presentation for Interior Designers, and  read more about sections in it or my other book, Architectural Drafting for Interior Designers  .