Rough Inspection
Rough inspection is a mandatory building department inspection verifying that framing, plumbing, electrical, and mechanical systems meet code requirements before they are concealed by insulation and drywall.
Rough inspection occurs after framing and rough-in work is complete but before any systems are concealed. Building inspectors verify structural framing meets code: proper headers, joist sizing and spacing, shear wall nailing, and load bearing support. They check plumbing for proper pipe sizing, slope, venting, and support. Electrical inspection confirms wire sizing, box installation, grounding, and circuit protection. HVAC inspectors verify duct sizing and installation. Only after passing rough inspection can insulation and drywall proceed.
Why It Matters
Rough inspection protects safety and ensures code compliance. Problems caught during rough inspection are easy to fix—moving a drain line or adding blocking takes minutes. The same fix after drywall is installed requires cutting holes, repairs, and re-inspection. Schedule rough inspection when work is complete and clean: debris removed, areas accessible, and all systems ready to be covered. In Denver, allow 24-48 hours for inspection scheduling. Failed inspections delay projects—address inspector concerns promptly to keep projects moving.
What Inspectors Verify
- Framing: Headers sized properly, joist spans, bearing conditions, fastening
- Plumbing: Drain slopes, vent sizing, proper support, pressure testing
- Electrical: Wire sizing, box fill, grounding, AFCI/GFCI protection
- HVAC: Duct sizing, support, insulation, combustion air
- Energy code: Insulation types and R-values, air sealing details
- Safety: Proper clearances, fire blocking, gas line pressure testing
Related Terms
Rough-In
Rough-in is the phase of construction where plumbing pipes, electrical wiring, and HVAC ducts are installed within wall, floor, and ceiling cavities before insulation and drywall cover them.
Building Permit
A building permit is official authorization from the local building department allowing specific construction work to proceed in compliance with building codes and zoning regulations.
Final Walkthrough
The final walkthrough is the owner's inspection of completed construction work to verify everything is finished per contract specifications before releasing final payment.