CSI MasterFormat · Division 31 Earthwork

31 23 00 Excavation and Fill

Structural and trench excavation with engineered fill.

See the assemblies, products and code sections for this spec: free for 14 days, no card required.Sign inStart free trial
The CSI MasterFormat code for Excavation and Fill is 31 23 00, in Division 31 (Earthwork). It is most often checked against IBC Chapter 18 — Soils and Foundations.

The full text is for BuildSpec members

Read the complete section, search across every adopted code, run the calculators and ask Copilot — free for 14 days, no card required.

  • Fire-rated assemblies that satisfy this section
  • Products and manufacturers in this section
  • Insert into a project specification
Start your free 14-day trialSign in →

Our previews are real data — live counts, no placeholders. We publish our error log →