Mass Timber Construction (CLT/Glulam)

Updated Mar 26, 2026

Heavy timber construction using engineered wood products: Cross-Laminated Timber (CLT) panels for floors/walls/roofs, Glued-Laminated Timber (glulam) for beams/columns. IBC Type IV-A/B/C. Fire-resistant through charring. Carbon-sequestering.

category

Structure — Mass Timber

max height

18 stories (IBC Type IV-A)

fire behavior

Self-extinguishing char layer

RELATED KNOWLEDGE

📋 Code

IBC Section 1107 — Accessible Unit and Dwelling Unit Elements

Requires accessible common use elements within individual residential units.

🔧 Method

Concrete Slab-on-Grade — Pour-in-Place Method

Standard method for ground-level concrete slabs. Includes subgrade prep, vapor barrier, rebar/mesh, form setting, pour, finish, and cure. Typical crew: 6 workers. Productivity: 40-60 CY/day.

📋 Code

IECC Section 603 — Energy Cost Budget Method

Provides performance-based alternative to prescriptive energy code requirements.

🔧 Method

Wood Wall Framing — Platform Frame Construction

Standard method for framing exterior and interior walls in residential and light commercial construction. Build walls flat on deck, tilt up. 16 or 24 OC stud spacing. Headers over openings.

📋 Code

NFPA 99 — Health Care Facilities Code

Comprehensive code for safety systems in hospitals and medical facilities.

🌿 certification

Fire Protection Engineer (FPE) Certification

Advanced certification for engineers specializing in fire safety systems.

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