As-Built Drawings Explained: What They Show, When You Need Them and How They Are Produced

As-built drawings provide a measured record of what exists, rather than what was originally proposed. This guide explains what reliable as-built information should contain, how it differs from design and record drawings, when plans, sections and elevations are needed, and how survey methodology affects the finished deliverables.

• Define the intended use, coverage and level of detail before capture.
• Distinguish measured evidence from design information and reported changes.
• Plans, sections and elevations require interpretation and quality assurance.