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🔗 Sequenceconstruction

Concrete Slab-on-Grade Sequence

Updated Mar 26, 2026
Slab construction: 1) Sub-grade compaction (95% Proctor), 2) Vapor barrier (10-15 mil), 3) Gravel base (4-6 in), 4) Edge forms, 5) Rebar/mesh placement on chairs, 6) Pre-pour inspection, 7) Concrete placement, 8) Finishing (screed, float, trowel), 9) Curing (7+ days).
TAGS
concreteslabvapor-barriercompactionfinishing
DETAILS
phase
BUILD
category
Concrete — Slab
cure time
7 days minimum before loading
successor
Framing or interior work
predecessor
Underground MEP complete
critical holds
["Pre-pour inspection","Compaction test"]
RELATED KNOWLEDGE
🔗 Sequence
Foundation → Framing Sequence (Hold Point: Foundation Inspection)
Framing cannot begin until foundation inspection passes. Concrete must achieve minimum 75% design strength before loading. Foundation inspection is a hard hold point in every jurisdiction.
🔗 Sequence
Rough MEP → Insulation Sequence (Hold Point: Rough-In Inspection)
Insulation and drywall cannot begin until rough mechanical, electrical, and plumbing inspections pass. All three trades must complete rough-in and be inspected before walls can be closed.
📋 Code
IBC Section 1107 — Accessible Unit and Dwelling Unit Elements
Requires accessible common use elements within individual residential units.
📋 Code
IECC Section 603 — Energy Cost Budget Method
Provides performance-based alternative to prescriptive energy code requirements.
🔗 Sequence
Drywall → Paint/Finishes Sequence
After drywall hung and taped: prime, texture, paint. Flooring after paint (or protect if before). Cabinets after drywall, before countertops. Trim/millwork after paint. Final clean before CO inspection.
📋 Code
NFPA 99 — Health Care Facilities Code
Comprehensive code for safety systems in hospitals and medical facilities.
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