GAB Report event briefing

Type III Fire-Resistant Design for Exterior Walls, Shafts and Intersections

  • DateSep 22, 2026 · 11:30 am GMT-0400
  • FormatVirtual

About the event

This regional online technical seminar addresses fire-resistant design and construction for Type III mid-rise wood-frame buildings. The session focuses on common detailing challenges and areas of misunderstanding concerning exterior walls, their intersections with rated floor assemblies, and shaft enclosures for elevators, stairs, and mechanical systems. Attendees will examine International Building Code provisions, code-specified building sizes, asymmetric assemblies, and wood structural panel allowances. Through detailed floor-to-wall and floor-to-shaft intersections, the presentation illustrates practical compliance paths, constructability considerations, structural shaft design, and the technical rationale needed to support approvals from code officials.

What you’ll learn

  • Review Type III construction with regard to cost, building size, and fire resistance per the International Building Code.
  • Review code requirements for exterior and shaft walls, emphasizing common questions, including the use of asymmetric assemblies, allowance of wood structural panels, and bearing vs. non-bearing requirements.
  • Examine a variety of floor-to-exterior wall and floor-to-shaft-wall details for use in wood-frame, Type III construction, and discuss code compliance paths and approval rationale for each.
  • Recognize structural design considerations for stair and elevator shafts.

Attendance notes

WoodWorks will send each attendee a certificate of completion within 2 weeks via email. Attendees must stay for the duration of the event to receive a certificate.


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