A decade ago, mass timber was still a curiosity on many project teams—an interesting material with a handful of high-profile pilot projects. Today, it is a serious structural option in markets across North America and beyond. The International Mass Timber Conference (IMTC) has been a central gathering point for this shift, bringing together engineers, researchers, fabricators, contractors, developers, insurers, code officials, and policymakers. If you are a structural engineer who touches building design—whether you specialize in timber or you are timber-curious—the 2026 IMTC should be on your shortlist of must-attend events.
This article offers an overview of what to expect based on recent editions of the conference, why it matters right now for structural practice, and how to get the most value from attending.
Why mass timber is not a niche anymore
Structural engineers are being asked to solve for embodied carbon, construction speed, site logistics, tenant experience, and future adaptability at once. Mass timber has emerged as a competitive answer because it couples performance with constructability:
- Structural performance: Cross-laminated timber (CLT), glued-laminated timber (glulam), dowel-laminated timber (DLT), nail-laminated timber (NLT), and mass plywood panels (MPP) give engineers a toolkit across spans, loads, and vibration criteria. Hybridization with steel and concrete expands possibilities for cores, long spans, and lateral systems.
- Construction productivity: Prefabrication and CNC machining enable tight tolerances and rapid dry-in, shrinking schedules and site congestion. Lighter components can reduce foundation size and crane time and ease tight urban logistics.
- Fire and resilience: Modern mass timber design leans on predictable charring, encapsulation strategies, and robust connection detailing. As performance-based approaches mature, engineers have clearer pathways to document code compliance with confidence.
- Embodied carbon: With credible EPDs, bio-based sequestration, and lower energy inputs, mass timber can meaningfully reduce embodied carbon compared to conventional systems, especially when whole-life carbon is considered. Owners and jurisdictions increasingly set targets that favor timber or hybrids.
- Occupant value: Warm finishes, biophilic benefits, and acoustical control are leading many repeat clients to ask for timber again. Engineers are critical to translating those preferences into viable structural systems.
What the 2026 program typically includes for structural engineers
While the final agenda will be published in January 2026, past editions follow a pattern that makes the event uniquely valuable to engineers:
- Code and standards updates. Sessions often unpack the latest adoptions and forward-looking proposals spanning the International Building Code (IBC), the National Design Specification for Wood Construction (NDS), ASCE 7 wind and seismic provisions, and standard product qualifications such as ANSI/APA PRG 320 for CLT. Expect discussion of tall timber provisions, fire-resistance detailing, and approvals pathways with Authorities Having Jurisdiction (AHJs).
- Performance-based fire design. Deep dives on charring models, heat transfer assumptions, delamination risk, char layer integrity at connections, and compartment modeling are staples. Case studies illuminate how teams document equivalency, handle exposed versus encapsulated strategies, and manage repairability after fire events.
- Seismic and wind engineering. Engineers share lessons learned on diaphragm segmentation, collectors, panel-to-panel shear transfer, rocking systems, glulam frames, buckling-restrained brace hybrids, and platform versus balloon-type configurations. Testing updates often inform connection slip, ductility, and overstrength assumptions.
- Connection engineering. There is always a strong focus on self-tapping screws, concealed connectors, bearing and withdrawal capacity, multi-axial loading, fire protection at steel interfaces, and durability in wetting/drying cycles. Fabricators showcase novel hardware and testing data you will not easily find in textbooks.
- Vibration, acoustics, and serviceability. Sessions regularly address occupant comfort in offices, residential, and lab programs, including modal tuning, composite topping behavior, tuned mass dampers, and low-frequency footfall control. Acoustical consultants and engineers share construction details that actually work, not just lab numbers.
- Moisture, durability, and QA/QC. Expect lessons on temporary protection, moisture monitoring, wetting thresholds, remediation protocols, and details for penetrations and roof edges. Many failures in timber are not design limit states—they are moisture management issues. This is where you learn what to specify and how to sequence.
- Hybrid systems and tall timber. As projects grow in height and program complexity, tall timber and hybrid cores (steel or concrete with timber floors) are common topics. Engineers walk through stiffness compatibility, differential movement, diaphragm-to-core interfaces, and fire-resistance transitions between materials.
- Digital delivery and manufacturing. From early-stage structural optimization to CNC toolpaths and digital twins for quality control, the digital workflow is a strong theme. You will see how design intent translates into exact panel geometry, tolerances, lifting points, and site sequencing.
- Embodied carbon and procurement. Sessions often pair LCA methods with procurement strategy: how to request EPDs, evaluate suppliers, integrate biogenic carbon accounting correctly, and balance carbon, cost, and schedule. Owners increasingly expect engineers to speak fluently about tradeoffs.
- Case studies with candid lessons learned. Project retrospectives tend to be refreshingly honest about what went right and what did not—particularly around schedule compression, inspection, tolerance stacking, and coordination with MEP and fire protection.
- Exhibit hall that matters to engineers. Beyond general marketing booths, you will often find full-scale mockups, cutaway connections, fastener demonstrations, adhesives, fire-resistant sealants, acoustical build-ups, mass timber façade systems, and moisture monitoring tech. Plan extra time here.
Why attend in 2026 specifically
- Codes and approvals continue to evolve. Many jurisdictions are still integrating newer timber provisions into their permitting practices. The conference gives you direct access to people who write, interpret, and enforce those rules—and examples of documentation packages that sail through versus stall.
- Supply chain maturity and diversification. The number of CLT and glulam producers serving North America has grown, with differing layups, adhesives, panel sizes, strength classes, and lead times. Understanding these differences early in design is a structural advantage; it can prevent redesign during procurement.
- Tight labor and schedule pressure. Prefabrication offers schedule certainty in a market where crews are stretched and urban sites are constrained. Engineers who can sequence, detail, and specify for speed become indispensable, and the IMTC is where you see schedule playbooks refined.
- Embodied carbon targets are getting specific. Owners are moving from aspirational goals to explicit benchmarks and procurement criteria. Sessions at IMTC help engineers translate those targets into structural decisions and specifications that stand up to cost and constructability.
- Risk, insurance, and durability are in the spotlight. Insurers and lenders want evidence-based strategies for water, fire, and long-term performance. The conference features data, standards, and case histories you can cite in risk conversations, plus details you can add to drawings and specs to reduce premium friction.
What you will bring back to your practice
Engineers who attend typically return with immediately usable tools:
- Detailing standards. Proven details for panel edges, acoustic breaks, balcony interfaces, stair and elevator openings, shaft walls, and connectors with integrated fire protection.
- Calculation approaches. Better assumptions for vibration analysis, updated connection models incorporating combined loading and creep, and defensible charring and temperature profiles for fire design.
- Specifications language. Clauses for CNC tolerances, moisture limits, factory QA documentation, protection-in-transit, on-site moisture monitoring, and acceptance criteria.
- Diaphragm strategies. Practical approaches to CLT and hybrid diaphragms, collector detailing, anchorage to cores, and segmenting for shrinkage and staged stiffness.
- Procurement insights. Understanding when to name acceptable manufacturers, how to manage alternates, and how to align panel module sizes with plant capabilities to reduce waste.
- Coordination checklists. Items to catch early with architects, MEP, fire protection, and façades, especially penetrations, routing zones, and tolerance stacking at grids and stairs.
- Contacts. Fabricators, connection suppliers, installers, fire engineers, and inspectors you can pull into projects early—often the difference between smooth delivery and late redesign.
How to get the most value from the conference
- Arrive with project questions. Bring a short list of challenges from active or upcoming work: span targets, vibration limits, fire exposure strategies, diaphragm load paths, or hybrid options. Use sessions and the exhibit hall to chase specific answers.
- Plan your exhibit hall time. Map the floor for connection suppliers, panel manufacturers, acoustical systems, moisture monitoring vendors, and firestopping specialists using the free mobile app. Take copious notes using the free interactive platform and catch-up post show on sessions you weren’t able to attend.
- Attend at least one fire session and one moisture session. These are the two issues most likely to derail a timber project late. Prioritize them even if you are focused on structure—they inform detailing and risk conversations.
- Schedule side meetings. The people you want to meet are there. Reach out ahead of time through the mobile app to fabricators or specialty engineers to compare notes on your projects; a 30-minute coffee can change a design trajectory. Use the dining hall as a convenient place for impromptu meetings.
- Consider tours or workshops. Come in early for the Tuesday (3/31) pre-conference day to explore Oregon on one of four brand new mass timber building tours, or dive in through the Mass Timber Boot Camp and stay through the General Session, before the Expo Hall opens with a lively reception.
- Capture PDHs/CEUs. Sessions commonly offer continuing education credits. This makes the trip easier to justify internally and keeps your licensure in good standing.
For structural engineers, the International Mass Timber Conference is not just another industry gathering; it is a cross-disciplinary laboratory where theory, testing, fabrication, and construction meet. The 2026 edition – which also happens to celebrate the conference’s 10th anniversary - will arrive at a moment when owners are demanding lower-carbon buildings, jurisdictions are refining timber pathways, and project teams are pushing for faster delivery without sacrificing performance. If your practice touches buildings where speed, carbon, or occupant experience matter—and whose does not—the conference will sharpen your technical toolkit and expand your network in ways that pay back quickly.
