Blueprint Letters

Letters commonly used to differentiate blueprint drawings. Includes Architectural, Electrical, Mechanical, Plumbing, and Structural blueprint pages.

LetterTypeDescription
AArchitecturalArchitectural pages includes plans for building and surrounding areas.
EElectricalElectrical plans shows the buildings electrical system.
MMechanicalMechanical plans shows heating, air conditioning and process piping systems.
PPlumbingPlumbing plans shows the plumbing system.
SStructuralStructural plans shows the structure of the building including concrete, masonry, wood framing, roof plans.

Blueprint Drawing Reference

Blueprints are often differentiated by the following letters:

  • A - Architectural pages
  • E - Electrical pages
  • M - Mechanical pages
  • P - Plumbing pages
  • S - Structural pages

Detailed Descriptions

Architectural pages includes plans for building and surrounding areas.

Electrical plans shows the buildings electrical system.

Mechanical plans shows heating, air conditioning and process piping systems.

Plumbing plans shows the plumbing system.

Structural plans shows the structure of the building including concrete, masonry, wood framing, roof plans.