How do you interpret elevation drawings symbols for doors and windows?

1 Types of symbols

The most common symbols for doors and windows on elevation drawings are rectangles, circles, and arcs. Rectangles represent sliding, swinging, or folding doors and windows, while circles and arcs indicate circular or arched openings. The orientation and position of the symbols indicate the direction and location of the doors and windows relative to the wall plane. For example, a rectangle with a diagonal line across it means a sliding door or window that opens to the left or right, while a rectangle with a dashed line inside it means a door or window that is recessed or projected from the wall surface.

3 Details and sections

Sometimes, elevation drawings also include details and sections of the doors and windows to show how they are constructed and installed. Details are enlarged views of specific parts or features of the doors and windows, such as frames, sills, jambs, casings, mullions, glazing, or hardware. They show the dimensions, shapes, and connections of these components, as well as any special requirements or instructions. Sections are cross-sectional views of the doors and windows along a vertical or horizontal plane. They show the thickness, layers, and insulation of the walls and the openings, as well as the relationship between the interior and exterior spaces.

4 Symbols and standards

The symbols and annotations for doors and windows on elevation drawings are not universal or fixed. They may vary depending on the design, style, or preference of the architect, engineer, or contractor. However, there are some common standards and guidelines that are widely used and accepted in the construction industry. For example, the American National Standards Institute (ANSI) and the American Institute of Architects (AIA) have published standards and codes for architectural drawing symbols and conventions, including those for doors and windows. You can refer to these sources or consult with your project team to ensure that you understand and follow the symbols and meanings on your elevation drawings.

5 Tips and tricks

To interpret elevation drawings symbols for doors and windows accurately, you can use a scale ruler or digital tool to measure the dimensions and proportions of the symbols and compare them with the actual size. Look for clues and indicators on the drawings that suggest the type and direction of the doors and windows, such as handles, hinges, locks, latches, or arrows. Additionally, check the notes, specifications, and references on the drawings that explain or clarify the symbols and annotations. To gain further insight into how the doors and windows relate to the building’s overall layout and structure, review the floor plans, sections, and details. If you are unsure or confused about any symbols or meanings on the elevation drawings, ask questions or seek feedback from your project team or supervisor.