What inspections does the building department normally want on a CMU house from footing to tie beam, and when do I call them?

For a typical CMU (Concrete Masonry Unit) house, the standard inspection sequence from footing to tie beam is below. Always verify the exact required list on your permit card or local amendments—some jurisdictions combine or add inspections (e.g., termite treatment, slab moisture barrier).

1. Footing / Foundation Inspection

• When: After trenches are excavated, forms/rebar/chairs are placed, before concrete is poured.
• What they check: Depth/width per plans, soil bearing, rebar size/spacing/cover (ACI 318 / IRC R403), step footings, hold-down/anchor bolt templates.

2. Slab / Under-Slab Inspection (if slab-on-grade)

• When: After vapor barrier, sand/stone base, slab rebar/mesh, and plumbing rough-in (DWV pressure test) are complete, before slab pour.
• What they check: Vapor barrier laps/tape (IRC R506), rebar support/chairs, pipe protection/sleeves, termite treatment (if required locally).

3. Masonry Pre-Grout / "Cell" Inspection (Critical for CMU)

• When: After first few courses are laid, rebar dowels from footing are verified, vertical rebar is placed in cells, lintel steel is set, cleanouts are open at bottom of pour, before grout pump arrives.
• What they check: Rebar size/grade/spacing/lap splices (TMS 402/602 / IRC R606), cell alignment/cleanliness, grout space width (≥ 2" for coarse grout), lintel bearing/depth, anchor bolt/strap embedment.

4. Bond Beam / Tie Beam Inspection

• When: Formwork/block-outs for bond beam are in place, continuous horizontal rebar and stirrups/ties are tied, before grouting bond beam.
• What they check: Rebar continuity (corners, intersections), lap splices, stirrup spacing/hook embedment, anchor bolt/strap layout for roof/truss connection (IRC R606.11 / TMS 402), cleanouts.

5. Final Framing / Structural (Often combined with Tie Beam or separate)

• When: Roof trusses/rafters set, hurricane straps/clips installed, sheathing nailed (if required before dry-in), before roofing felt/dry-in.
• What they check: Truss-to-tie beam connections (straps per truss calcs/IRC R802.11), sheathing nailing schedule, gable end bracing.

Pro Tips

• Call 24 hrs ahead (or per local portal cutoff).
• Post permit & approved plans on site.
• Have cleanouts open for masonry pours—inspector will fail you if they can’t see bottom rebar.
• Grout tickets: Keep delivery tickets on site for inspector verification (slump, mix, time).
• Special Inspections: If engineered (

For a CMU (Concrete Masonry Unit) house, the building department typically requires a sequence of inspections from footing to tie beam to ensure structural integrity, code compliance, and safety. Below is the standard inspection sequence based on the International Residential Code (IRC) and common municipal practices (always verify with your local jurisdiction, as requirements vary):

Typical CMU House Inspection Sequence & Timing

1. Footing Inspection - When: After excavation, formwork, and rebar placement — before pouring concrete. - What they check: Depth, width, reinforcement (size, spacing, cover), soil bearing, and compliance with foundation plan. - IRC Reference: R403.1 (Footings), R403.1.6 (Reinforcement).

1. Foundation Wall / CMU Stem Wall Inspection (Pre-Grout) - When: After CMU blocks are laid to full height (typically up to top of wall or bond beam level), rebar is placed vertically and horizontally, and cleanouts are installed — before grouting. - What they check: Block alignment, mortar joints, vertical/horizontal rebar placement, cleanout accessibility, and lap splices. - IRC Reference: R608 (Grouted Masonry), R608.3 (Reinforcement).

1. Grout Inspection (During Pour) - When: During the grouting process — inspector may want to witness grout placement, consolidation, and cleanup. - What they check: Grout flow, consolidation (rodding/vibration), absence of voids, and proper cleanout sealing after pour. - Note: Some jurisdictions allow this to be combined with the pre-grout inspection if grout is small-scale; others require a separate pour inspection. - IRC Reference: R608.5 (Grouting Requirements).

1. Tie Beam / Bond Beam Inspection (Pre-Pour) - When: After bond beam forms are set, rebar is placed (including stirrups and lap splices), and CMU is prepared to receive the beam — before pouring concrete. - What they check: Rebar size, spacing, cover, continuity, anchorage into wall, and formwork integrity. - IRC Reference: R608.9 (Bond Beams), R403.1.6.1 (Reinforcement in Beams).

1. Final Structural / Framing Inspection (Optional but Common) - When: After tie beam is poured and cured, and before roof/floor framing begins. - What they check: Beam elevation, levelness, embedment of anchor bolts for sill plates, and overall continuity of the load path. - Note: Some jurisdictions combine this with the tie beam inspection; others require a separate “rough-in” or “pre-sheathing” check.

Key Tips

• Call 24–48 hours in advance — most departments require scheduling via phone or online portal.
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