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Construction Document Types

Sep 6, 2025

Overview

This lecture explains the differences between floor plans, building elevations, building sections, wall sections, and details commonly used in construction documents.

Floor Plans

  • A floor plan is a horizontal slice through a building, typically 4 feet 6 inches above the finished floor.
  • Floor plans show the arrangement of spaces and walls from a top-down view.

Building Elevations

  • A building elevation is a vertical drawing that shows a straight-on view of the outside of a building.
  • Elevations represent the external appearance of each side of the building.

Building Sections

  • A building section is a vertical slice through the building, illustrating interior spaces and relationships between floors and walls.
  • Sections show how different parts of the building connect vertically.

Wall Sections

  • A wall section zooms in on a specific wall area to provide more detailed information about construction and materials.
  • Wall sections are shown at a larger scale than general sections for clarity.

Details

  • Details are highly magnified views focusing on specific construction components or connections.
  • Details provide the most precise information within construction documents.

Common Features

  • Floor plans, elevations, and building sections are usually drawn at the same scale for consistency and comparison.
  • Wall sections and details use larger scales to show increased detail.

Key Terms & Definitions

  • Floor Plan β€” a horizontal cut through a building, viewed from above.
  • Elevation β€” a straight-on vertical view of the building’s exterior.
  • Building Section β€” a vertical cut through a building, showing internal arrangements.
  • Wall Section β€” an enlarged vertical cut through a specific part of a wall.
  • Detail β€” a highly focused drawing showing intricate construction information.

Action Items / Next Steps

  • Review sample construction documents to identify and compare each drawing type.