8th topic

A section is a view of a building or object obtained by making an imaginary cut through it. The term section is mainly used where the cut is made in a vertical direction, and which is so in location sections. A vertical section through a building will show details of the construction of the foundations, walls, floors, roof and other parts and describe the interior portions of an object that are otherwise difficult to visualize. Interior features defined using hidden lines are more complex than if they are exposed for viewing as visible features. 

The number of sections required of a building will depend on its size and complexity. Generally, there will be at least two sections - one of these will be a section, across the width of the building. The other will be a longitudinal section along the length of the building. Sections are intended to help the builder construct the building, so the exact position of the section should be chosen to show as much construction as possible.

The purpose of a location section is to expose the hidden features for dimensioning.

Please see the exercise content with information and explanation, and then answer the exercise question related to the garage section drawing.

In this exercise, pay attention to the thickness of the cut lines. If a wall or foundation is cut, the material is visible, and a thick line is needed to depict the structure's contours. If the structure is not cut but is visible as a window slope or the bottom of a garage door, a thin line should be used to depict these structures.

For exercises with cutting planes move, use the house simulator or the house viewer.

If you will draw the so-called architectural section, in which individual ceilings, floors, roofs, and stairs you do not need to show constructions. 

The cutting direction is recommended from right to left. 

The incision site should be marked in the plan.

Let's consider another type of image called a cross-section. 

This image shows only cut parts, and all visible but not cut elements are not present in the image - compare the section and cross-section of the house in the next exercise, which consists of several interesting things!