Best Practices

The Engineering Firm's Complete QA Checklist for Drawing

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Quick Summary

  • Comprehensive QA checklist covering structural, mechanical, electrical, plumbing, and fire protection
  • Focus on inter-discipline coordination—where most costly errors originate
  • Use at 50% CD, 90% CD, and before permit submission
  • Pairs with AI review for comprehensive coverage

Engineering firms face a unique challenge: the work of multiple disciplines must coordinate seamlessly, yet each discipline often reviews only their own documents. This checklist provides a systematic approach to engineering QA/QC that catches coordination issues before they become expensive field problems.

How to Use This Checklist

This checklist is designed for use at key project milestones:

  • 50% CD: Focus on coordination fundamentals—grids, routing corridors, major equipment locations
  • 90% CD: Full checklist review with emphasis on details, schedules, and specification alignment
  • Pre-Permit: Final verification with focus on code compliance items
  • Pre-Bid: Constructability and clarity review

Assign specific sections to discipline leads, but conduct coordination review as a team. The interfaces between disciplines are where issues hide.

Structural Engineering QA Checklist

Structural

General Coordination

  • Grid lines match architectural plans
  • Column locations align with enclosures
  • Floor-to-floor heights match sections
  • Slab depressions coordinated
  • Expansion joints coordinated
  • Building outline matches footprint

Load Path & Design

  • Gravity load path continuous roof-to-foundation
  • Lateral load path defined and continuous
  • Member sizes consistent plans-to-details
  • Connection details for unique conditions
  • Moment/braced frame locations shown
  • Special inspections noted

MEP Coordination

  • Mechanical equipment loads accounted for
  • Rooftop equipment supports shown
  • MEP penetrations identified and reinforced
  • Slab penetrations coordinated
  • Vibration isolation addressed

Foundation

  • Foundation plan matches column layout
  • Geotechnical recommendations incorporated
  • Footing sizes dimensioned
  • Slab-on-grade details complete
  • Elevator pit coordinated

Mechanical (HVAC) QA Checklist

Mechanical/HVAC

Equipment

  • Equipment schedule complete
  • Locations match schedules
  • Room sizes adequate with clearances
  • Service access provided
  • Weights coordinated with structural
  • Electrical requirements listed

Ductwork

  • Duct sizes consistent with schedule
  • Routing fits ceiling space
  • Avoids structural conflicts
  • Fire/smoke dampers at rated assemblies
  • Access doors provided
  • Diffusers coordinated with ceilings

Piping

  • CHW/HW piping sized and routed
  • Refrigerant runs reasonable length
  • Condensate drains routed
  • Insulation requirements noted

Controls

  • Sequence of operations provided
  • Control points and sensors shown
  • BMS integration specified

Electrical QA Checklist

Electrical

Power Distribution

  • Single line matches panel schedules
  • Panel schedules complete
  • Panel locations shown
  • Service entrance sized
  • Emergency power sized
  • Transfer switches specified

Coordination with MEP

  • Mechanical equipment has electrical connections
  • Motor HP matches M-to-E
  • VFD requirements coordinated
  • Plumbing equipment powered

Lighting

  • Layout coordinated with ceiling plan
  • Emergency lighting adequate
  • Exit signs match egress
  • Controls specified
  • LPD compliance shown

Low Voltage

  • Fire alarm coverage shown
  • Telecom/data shown
  • Security addressed

Plumbing QA Checklist

Plumbing

Fixtures

  • Fixture counts meet code
  • Schedule complete with specs
  • Locations match architectural
  • Accessible fixtures specified

Piping Systems

  • Water service sized
  • Hot water system shown
  • Sanitary routing shown
  • Vent system complete
  • Storm drainage shown
  • Grease interceptor where required

Coordination

  • Piping avoids structural conflicts
  • Floor drains coordinated
  • Penetrations identified
  • Water heater clearances verified

Fire Protection QA Checklist

Fire Protection

Sprinkler System

  • Coverage by hazard classification
  • Riser locations coordinated
  • FDC accessible
  • Head types appropriate
  • Obstructions addressed

Fire Alarm

  • Device locations shown
  • Notification coverage adequate
  • Smoke detectors per code
  • FACP location identified
  • Annunciator at entrance

Fire Separations

  • Rated walls identified
  • Penetrations detailed
  • Fire dampers at ducts
  • Firestopping specified

Inter-Discipline Coordination Review

This is the most critical review—conduct with all discipline leads present:

Critical Coordination Points

  • Ceiling cavity adequate for all systems
  • Structural penetrations identified
  • Rated penetrations have firestopping
  • Equipment rooms sized for all systems
  • Shaft sizes accommodate services
  • Electrical capacity matches mechanical needs
  • Floor penetrations coordinated

Augmenting With AI Review

This checklist provides systematic human review. Pair it with AI-powered review for comprehensive coverage:

  • AI handles volume: Checking every dimension, every reference, every cross-discipline interface
  • Humans handle judgment: Evaluating design intent, constructability, project-specific requirements
  • Together: More thorough coverage than either alone

Complete Your QA/QC Process

Run AI review alongside your manual checklist. AI catches the systematic coordination issues that are easy to miss across hundreds of sheets.

Conclusion

Systematic QA/QC isn't glamorous, but it's essential. Every issue caught during review is one that won't become an expensive field problem. Use this checklist at every major milestone, conduct coordination review as a team, and augment with AI for comprehensive coverage.

Your firm's reputation depends on delivering coordinated, buildable documents. This checklist helps you do exactly that.

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