A blueprint is the traditional term for a building’s technical construction drawings, named for an old reproduction process that produced white lines on a blue background.
Though the actual blue-printing process is obsolete, the term persists as shorthand for any set of construction plans.
What Does the Term Blueprint Refer To Today?
- Architectural drawings
- Structural drawings
- Mechanical, electrical, and plumbing drawings
- Any full set of construction documents, used casually
Why Does the Term Blueprint Still Matter?
Used casually by homeowners and professionally by some older-generation contractors, the word blueprint still communicates the same idea: the plans a project is built from. It shows up in everyday language well beyond construction too, as shorthand for any detailed plan.
Blueprint vs. Construction Drawings
Construction drawings is the accurate modern term for a project’s technical plans, typically produced as digital CAD files or plotted sheets rather than true blueprints. Blueprint remains in common use as an informal synonym, even though the literal printing process it refers to hasn’t been used in decades.