Home Glossary Spec section
Short answer
A numbered part of the project specifications covering one scope of work, written in the CSI three-part format of General, Products, and Execution. An example is 09 51 00 Acoustical Ceilings.
Also called Specification section .
Related terms
Browse the full glossary , the CSI division guides , or learn how submittal review works . Then run a review .
For subcontractors
Check your submittal before the GC does.
Upload your spec section and your package. Deviation Check returns every deviation with the exact spec quote, a severity, and the fix, usually in under five minutes, so the package goes through the first time instead of coming back Revise and Resubmit.
Run a $35 check
See a sample report
$35 per submittal. No subscription, no demo call. Reviewing a sub's package instead? It works the same way.
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