Division 03 Concrete
Detail or Installation Mismatch in Division 03 Concrete submittals
Short answer
The submitted detail, dimension, anchorage, or installation method differs from what the spec or drawings require. Default grade in Division 03 Concrete: Fix and Resubmit.
The submitted detail, dimension, anchorage, or installation method differs from what the spec or drawings require. This guide covers how it shows up specifically in Division 03 Concrete submittals.
What to look for in Division 03 Concrete
- Rebar spacing differs from structural drawings
- Lap splice length below ACI 318 development length requirements
- Concrete cover below specified minimum
- Joint layout (control joints, expansion joints, construction joints) differs from drawings
- Embed plate location, size, or anchorage differs
- Form tie pattern or type differs (she-bolt vs snap-tie)
- Anchor bolt size, embed depth, or edge distance differs
- Post-installed anchor type or capacity differs from engineer's design
- Rebar coating type differs (epoxy-coated vs galvanized vs uncoated)
- Dowel bar size or spacing at construction joints differs
- Waterstop type or placement differs from detail
- Vapor retarder placement (above vs below granular base) differs
How severe is it?
Default grade: Fix and Resubmit. Escalates to Blocker when the difference affects a fire-rated, seismic, or structural assembly.
Deviation Check assigns a default per category and escalates or de-escalates based on the spec, always showing its reasoning. See the Division 03 severity rules.
What the PM should do
Stamp the submittal Revise and Resubmit. Mark the deviation, return the relevant spec passage as a redline, and have the sub correct and re-send before fabrication or installation.
Other deviation categories in Division 03
Frequently asked questions
What rebar and concrete cover details in a Division 03 submittal most often differ from the structural drawings?
Rebar spacing and lap splice length are the two most common mismatches. Lap splices below the ACI 318 development length requirement are a structural Blocker. Concrete cover below the minimums in ACI 318 Table 20.6.1 is equally serious, particularly for elements in corrosive or freeze-thaw exposure. Check embed plate location and anchor bolt edge distance as well - both frequently shift between design and shop drawings.
When does a waterstop or vapor retarder placement difference in a concrete submittal become a Blocker rather than Fix and Resubmit?
It becomes a Blocker when the placement difference affects a fire-rated, seismic, or structural assembly. A waterstop type or position change at a structural joint can compromise the fire or water rating of the assembly. A vapor retarder placed below the granular base rather than directly under the slab changes moisture performance in a way the engineer of record must explicitly approve. Either scenario requires escalation before work proceeds.
View this page as Markdown for LLMs and note-taking.