A site plan, sometimes referred to as a plot plan, is the graphic representation of all existing site conditions. The site plan maps the entire layout of the project site, including the location of buildings, paving, utilities, and terrain features in a single depiction.

Floor plans show the layout and spatial relationship between rooms, spaces, and elements such as walls, doors, windows, and furniture. Architects, engineers and builders use floor plans for design and retrofit projects.

Interior elevation drawings are 2D drawings that show the interior of a building from various angles. They are used to show the size and shape of a building, as well as the placement of windows, doors, and other features.

Exterior elevation drawings are used to show how a building looks from the outside. It documents the outline of a building, and the placement of windows and doors. Design professionals would request as-built exterior elevations to understand how the different levels of a building stack, and how the windows and doors align and are placed.

Sections are 2D drawings that show the cutaway view of a building, structure, or object, disclosing details of the internal structure.

Details are 2D drawings that show a specific element of a building, structure or object enlarged in more detail. The element is scaled for dimensioning and clarification purposes.

An isometric drawing is a representation of a 3D object drawn on a flat plane that mainly contains 2D coordinates – the x and y axes. Although it uses the 2D coordinate system, it gives the illusion that a 3D system is being used. Isometric drawings are made by tilting the viewing angle to 30 degrees for all sides in the 2D plane.

These drawings provide detailed information about the plumbing, HVAC, electrical, and other mechanical systems used in a building.

• A reflected ceiling plan shows the outline of the ceilings, the different ceiling levels, vent locations, and the different types of lighting fixtures.