CSI MasterFormat · Division 04 Masonry

04 27 00 Multiple-Wythe Unit Masonry

Composite and cavity wall assemblies with multiple wythes of brick and CMU.

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 Multiple-Wythe Unit Masonry is 04 27 00, in Division 04 (Masonry).

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 →