In project documentation, what is the primary difference between drawings and specifications?

• A. Drawings provide cost estimates
• B. Specifications show graphical representations
• C. Drawings show conceptual sketches
• D. Drawings show graphical representations; specifications provide written requirements and performance criteria

Answer: (D)

The main idea is that drawings communicate the project visually, showing size, shape, layout, and how components fit together, while specifications spell out the written requirements, performance criteria, materials, finishes, standards, and installation methods that those visuals must meet. This distinction matters because a drawing might show where a door goes and how it swings, but the specification tells you what the door is made of, its fire rating, hardware finish, and the tests it must pass. Drawings and specifications work together to guide construction: the drawings provide the visual plan, and the specifications define the exact requirements that those visuals must fulfill.