Division 32 Exterior Improvements
Detail or Installation Mismatch in Division 32 Exterior Improvements submittals
Short answer
The submitted detail, dimension, anchorage, or installation method differs from what the spec or drawings require. Default grade in Division 32 Exterior Improvements: 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 32 Exterior Improvements submittals.
What to look for in Division 32 Exterior Improvements
- Pavement section thickness - base + surface course total must match geotechnical pavement design recommendation; shortchanging base is a common substitution
- Asphalt surface course thickness differs from spec (e.g., 2" spec, submittal shows 1.5")
- Concrete joint spacing differs from spec maximum (typically 10-15 ft for 4" slab; exceeding joint spacing increases cracking risk)
- Curb reveal height differs from spec or ADA requirements at transitions
- Irrigation head spacing does not match precipitation rate calculations (head-to-head coverage required for specified DU)
- Plant spacing differs from landscape plan requirements (affects coverage at maturity)
- Tree pit size below spec minimum (typically 3x root ball diameter for B&B)
- Fencing post embedment depth differs from spec minimum (typically 1/3 of total post height plus 6")
- Bike rack or bollard anchor bolt pattern differs from manufacturer's base plate template
- Rubberized track thickness per lane differs from spec (affects Gmax rating)
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 32 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 32
Frequently asked questions
What pavement section details in Division 32 Exterior Improvements submittals most commonly differ from the geotechnical recommendation?
Base course thickness is the most common shortfall - the total base plus surface course must match the geotechnical pavement design, and reducing base depth is a frequent cost-cutting substitution. Surface course thickness is also checked: a spec calling for 2 inches of asphalt and a submittal showing 1.5 inches is a mismatch that must be corrected before approval. Both affect pavement life under design loading.
How does concrete joint spacing in a Division 32 Exterior Improvements submittal connect to cracking risk, and what is a typical spec limit?
Joint spacing controls where shrinkage cracks form - spec maximums are typically 10-15 feet for a 4-inch slab. Exceeding the specified spacing means cracks are more likely to form randomly between joints rather than at the planned cuts. A submittal showing wider joint spacing than the spec requires must be revised before the pour, since re-sawing after placement is not a practical remedy.
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