Which drawings are designed for coordinating multiple trades?

• A. Mechanical drawings
• B. Architectural drawings
• C. Coordination drawings
• D. Electrical drawings

Answer: (C)

Coordination drawings are the drawings that bring together the work of different trades—mechanical, electrical, plumbing, architectural, and structural—so everyone can see how their components fit in the same space. They identify potential clashes, such as a duct running through a beam or a pipe colliding with a ceiling grid, and show modifications to avoid these conflicts before fabrication and installation. This makes them ideal for coordinating multiple trades because their whole purpose is to resolve interferences and align installation sequencing across trades. Other drawings focus on individual disciplines: mechanical drawings show equipment and ductwork layout, architectural drawings convey design intent and dimensions for the building, and electrical drawings show wiring and circuits. But none is specifically used to coordinate all trades in one integrated view like coordination drawings.