Blueprint Reading Symbols - Part 1

What does the door tag references to and what does it tell you?

Answer explanation

A door tag references to a door schedule and the door schedule gives specifications on the door type, size, manufacturer etc.

What is a key note symbol?

• A call out with a number in a box and an arrow pointing to something that can be identified on a keynote schedule

• A box with a number and an arrow

• a box related to a schedule

• can be found on the keynote schedule

Where would you find an exterior elevation call out?

• on the roof plan

• On the elevation plan

• On the floor plan

• on the schedule

What is the difference between an exterior elevation callout and a building section callout?

Answer explanation

An exterior elevation callout refers to a drawing that shows a flat, side view of the exterior of a building, detailing its appearance, including windows, doors, and materials. In contrast, a building section callout represents a cut-through view of the structure, revealing the interior layout, construction elements such as walls, foundations and floors, and relationships between different parts of the building. Elevations focus on external details, while sections provide insight into the building’s internal structure and design.

What is the difference between the building section and the wall section callout?

Answer explanation

The wall section has a "little hat" compared to the "big hat" on a building section. The wall section only cuts through the wall and a little bit of the connected components while the building section cuts through the whole building in a specified direction