MEP Scope Gap & Responsibility Matrix Builder

How This Works

MEP scope gaps occur at the interfaces between mechanical, electrical, plumbing, and fire protection trades. These gaps — when unassigned — become change orders during construction, typically costing 5-15% of contract value.

This tool provides a structured checklist of the most common scope gap items, organized by trade interface. For each item, assign which party is responsible: General Contractor, Mechanical, Electrical, Plumbing, Fire Protection, Controls/BAS, or Owner.

How to use:

• Review each scope gap item and assign responsibility using the dropdown
• Use "Apply Typical Assignments" to pre-fill with industry-standard defaults, then adjust for your project
• Add custom items at the bottom of any section for project-specific scope gaps
• Export as CSV for your bid package, or print directly as a PDF matrix
• Share a link that preserves all your selections (encoded in URL)

Sources: Scope gap items compiled from AGC/ASA scope of work references, SMACNA coordination guidelines, NEC 110.26/430.102(B), ASHRAE commissioning standards, and published MEP coordination resources including HKA MEP interface studies and MEP Academy coordination checklists.