Tig welding Scale: Ratio of drawing size to real size (., 1/4 inch on paper equals 1 foot in reality). The scale can change per page.
Lines: Different line types (solid, dashed, hidden) represent various elements like walls, hidden pipes, or cut lines.
Symbols: Standardized icons for fixtures, electrical outlets, structural supports, doors, windows, etc..
Views: Different perspectives, such as:
Plan View (Floor Plan): A bird's-eye view, as if the building were cut horizontally.
Elevation: Shows the exterior or interior face of a wall.
Section View: A cut-through view revealing interior construction details.
Dimensions: Precise measurements for length, height, and placement.
Notes & Legend: Textual details and a key to symbols and abbreviations used in the set.
How to Interpret
Check the Title Block & Legend: Identify the project, sheet number, scale, and symbols used.
Orient Yourself: Find the compass symbol for direction (North) and understand the overall layout.
Read by View: Start with the floor plan, then check elevations and sections for detail.
Follow the Scale: Use an architectural ruler to convert measurements on paper to real-world dimensions.
Look for Details: Refer to notes and detail callouts (., sections or call-outs to other sheets) for specific instructions.
Understand the Disciplines: Differentiate between Architectural (ARCH), Structural (STR), Mechanical (MEC), Electrical (ELEC), and Plumbing (PLB) drawings.
This video explains how to read structural drawings and details