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Wood Design & Building Magazine, vol 25, issue 102

This issue of Wood Design & Building explores how intentional design can carry culture, support community, and foster connection. The projects featured here demonstrate how a clear vision can transform a building into an environment grounded in purpose, identity, and care, reflecting both people and place.

Several projects in this issue centre Indigenous perspectives and priorities. The Membertou First Nation office building, the Weliankweyasimk Women’s Shelter, and the Chief Leonard George residential building each reflect cultural knowledge, respond to community needs, and create spaces of safety, continuity, and belonging.

Wood is a consistent presence throughout. Long associated with shelter and refuge, it is also a material of gathering, warmth, and shared experience. It is no coincidence that projects grounded in human wellbeing so often turn to wood. This connection is present in many cultures. Our WoodWare feature on FinnFox, for example, highlights the part wooden saunas play supporting health and building community in Nordic (and Canadian) sauna culture.

At the same time, building with wood is not simply a return to the past. While it reconnects us with cultural knowledge and longstanding practices, it also reflects a growing recognition of wood as a high-performance, renewable material for contemporary construction. This is evident in the Chief Leonard George Building, Canada’s first tall mass timber residential building constructed to the Passive House standard. It demonstrates how thoughtful wood design can both preserve cultural continuity and point toward the future of high-performance, low-carbon construction.

Understanding Tolerances in Prefabricated Timber Construction

As prefabrication and hybrid timber systems become more widely adopted, tolerance coordination has emerged as a critical factor in project success. While components may meet material standards and fabrication targets, misalignment between design intent, manufacturing capability, and site conditions can still lead to fit-up issues, delays, and rework.

Understanding Tolerances in Prefabricated Timber Construction introduces a practical framework to help multidisciplinary project teams better define, communicate, and manage tolerances across all stages of a project—from design and fabrication to installation and in-service performance.

The publication outlines four core tolerance classes—Material Specification Limits, Standard Manufacturing Capabilities, Framing/System Deviations, and Installation Allowances—and explains how these interact in real-world construction. It also introduces key concepts such as Clearance Fits, designed fitment gaps, Critical to Fit (CTF) features, and Critical Dimensions (CDs), providing a structured approach to improving constructability at critical interface zones.

A step-by-step workflow is included to help teams translate broad standards into clearly defined fitment strategies, aligning design intent with manufacturing reality and site execution.

This resource is intended for architects, engineers, manufacturers, contractors, and developers working with prefabricated and hybrid timber systems. By establishing a shared language around tolerances, it supports better coordination, reduced risk, and more predictable project outcomes.

Guide to Mid-Rise Wood Construction in the Ontario Building Code

Second Edition

Applicable to the 2024 OBC (O. Reg. 163/24) – In Effect January 1, 2025


Overview

The Guide to Mid-Rise Wood Construction in the Ontario Building Code (Second Edition) provides a technical overview of the provisions permitting 5- and 6-storey combustible (wood) construction under the 2024 Ontario Building Code.

Developed by WoodWorks Ontario / the Canadian Wood Council, this updated edition reflects O. Reg. 163/24 and recent amendments affecting mid-rise residential (Group C) and office (Group D) buildings.

The Guide identifies key requirements, conditions, and limitations associated with mid-rise wood construction and is intended to support architects, engineers, builders, regulators, and code professionals working in Ontario.


What’s Included

This technical reference outlines:

  • Height and building area limits for 5- and 6-storey wood buildings
  • Fire-resistance requirements for floors, roofs, mezzanines, and loadbearing assemblies
  • Sprinkler system requirements (NFPA 13 vs. 13R)
  • Combustible cladding limitations and compliance pathways
  • Fire blocking and concealed space requirements
  • Fire department access and street-facing provisions
  • Emergency power enhancements
  • Structural and seismic design considerations
  • Mixed-use building permissions and occupancy separation requirements

The Guide focuses on new construction and is intended to be used in conjunction with the Ontario Building Code.

Exposed Mass Timber Calculator

The Canadian Wood Council is pleased to introduce a new design tool: the Exposed Mass Timber Calculator.

Developed to support practitioners working with encapsulated mass timber construction (EMTC), this tool helps determine whether a compartment design aligns with the 2025 edition of the National Building Code of Canada (NBC).

By entering key information about your compartment layout—including size, wall configuration, mass timber elements, and encapsulation details—the calculator evaluates whether the design meets code requirements for exposed mass timber elements.

The tool allows users to:

  • Evaluate permissible percentages of exposed mass timber elements (beams, columns, walls, and ceilings)

  • Confirm compliance within suites or fire compartments

  • Identify potential code issues through automated warnings

  • Visualize compartment configurations with a generated 3-D model

  • Review encapsulation requirements and supporting notes

 

This practical calculator helps architects, engineers, and code professionals explore compliant design options more efficiently when working with mass timber construction.

Try the Exposed Mass Timber Calculator

 

Photo © Tom Arban

Federal Call for Proposals Opens Under $500M Forest Sector Transformation Investment

February 25, 2026 (Ottawa, ON) — The Canadian Wood Council (CWC) welcomes today’s launch of a national Call for Proposals by the Honourable Tim Hodgson, Minister of Energy and Natural Resources, under Natural Resources Canada’s forest sector transformation programs. Backed by a $500-million federal commitment, the funding is now open for applications from eligible businesses and organizations across Canada.

The call supports projects through four key programs:

 

“This strategic investment comes at a pivotal time for Canada’s forest sector,” said Rick Jeffery, President and CEO of the Canadian Wood Council. “These programs can help accelerate modernization, support innovation, and expand the use of advanced wood solutions—strengthening our industry and opportunities within our domestic market while positioning Canada as a global leader in sustainable construction.”

Wood solutions are central to Canada’s built environment and economic future. Expanded use of wood in construction can support housing supply goals, reduce embodied carbon, and create new opportunities for growth and value-added manufacturing.

The Canadian Wood Council encourages members, partners, and wood products manufacturers to explore these funding opportunities to:

  • innovate and diversify production
  • strengthen domestic demand
  • expand the use of wood in construction
  • support Indigenous participation
  • access emerging markets

 

About the Canadian Wood Council

The Canadian Wood Council (CWC) is Canada’s unifying voice for the wood products industry. As a national federation of associations, our members represent hundreds of manufacturers across the country. Our mission is to support our members by accelerating market demand for wood products and championing responsible leadership through excellence in codes, standards, and regulations. We also deliver technical support and knowledge transfer for the construction sector through our market leading WoodWorks program.

 

For media inquiries, please contact:

Sarah Hicks
Communications and Outreach Manager
Canadian Wood Council
shicks@cwc.ca  | 1-705-796-3381

Wood Design & Building Magazine – Sign Up

Wood Design & Building Magazine - Sign Up

 

Stay connected to the ideas, projects, and technical insights shaping wood design and construction across Canada and beyond. Wood Design & Building magazine is published six times per year and delivers award-winning projects, expert perspectives, and practical guidance on all forms of wood construction. Whether you’re an architect, engineer, builder, developer, or wood enthusiast, subscribing ensures each issue arrives directly in your inbox—keeping you informed, inspired, and ready to bring more wood into your work.

 

Wood Design & Building Magazine – Sign Up

 

Limberlost Place: Video Case Study

Discover the world’s first 10-storey exposed mass timber academic tower at George Brown College. This landmark project proves that sustainable, innovative, and human-centred design can stand tall together.

 

Building What’s Possible

George Brown College’s Limberlost Place redefines what’s possible with mass timber construction. Rising 10 storeys above the college’s Toronto waterfront campus, this project is currently the largest exposed mass timber building of its occupancy type in the world.

Designed by Moriyama & Teshima Architects in joint venture with Acton Ostry Architects, built by PCL Construction, and realized in partnership with George Brown College, Limberlost Place demonstrates how innovation and collaboration can create a new model for sustainable development.

 

Sustainability at Scale

Mass timber is more than a building material — it’s a climate solution. This project shows that Canada’s design and construction industry is leading the way to a net-zero future.

By prioritizing wood construction, Limberlost:

  • Reduces carbon emissions significantly.
  • Creates healthy, biophilic spaces that support learning and well-being.
  • Proves that large-scale, low-carbon construction is achievable today.

 

Powered by Partnerships

Limberlost Place was made possible through strong collaboration. George Brown College worked alongside architects, engineers, and construction partners to deliver a bold vision: a living classroom where future designers, builders, and innovators can study inside the very spaces shaping tomorrow’s built environment.

 

A Blueprint for the Future

Limberlost Place is more than a single project. It’s a blueprint for how to build smarter and faster. By combining mass timber with hybrid engineering solutions, this project has set a new benchmark for low carbon construction in Canada and beyond.

 


Limberlost Place: Video Case Study

Limberlost Place: Video Case Study

Limberlost Place: Video Case Study

Limberlost Place: Video Case Study

Limberlost Place: Video Case Study

Limberlost Place: Video Case Study

 

This video case study was made possible through funding support from Natural Resources Canada and the Canadian Wood Council.

Wood Design & Building Magazine, vol 25, issue 101

Every issue of Wood Design & Building tells a different story about how wood is shaping contemporary construction. Some editions revolve around a clear theme such as our recent issue on strategic additions and adaptive reuse; others, like this one, reflect the diversity of challenges, innovations, and contexts that define wood construction today. What unites the features in this issue is not a single building type or region, but a shared commitment to thoughtful planning, ingenuity, and execution.

We begin in the mountains of British Columbia, where the Robson Cabin project pushes the limits of planning and coordination. Accessible only by helicopter, the remote alpine site demanded meticulous preparation, high levels of prefabrication, and an unwavering attention to detail. Alongside the technical complexity, the construction crew also contended with less predictable site conditions—including a persistent population of porcupines, whose curiosity added a memorable twist to an already remarkable build.

From there, we turn to one of the most sought-after—and often elusive—topics in the industry: cost. Reliable, project-specific costing data for mass timber buildings remains rare, and cost uncertainty can be a barrier to wider adoption of mass timber construction. This issue features an overview of a new mass timber business case study published by WoodWorks BC, which presents detailed cost, schedule, and design data from three projects. By comparing mass timber systems to conventional construction approaches across three building types, the study offers valuable insight into real-world construction costs, decision-making, and the strategies that can bring mass timber into cost parity.

Our final feature takes us to Trenton, Nova Scotia, for a virtual construction tour of the Pictou County Sports Heritage Hall of Fame, a community-focused project being realized through close collaboration between designers, builders, and trades. The one-storey building brings together panelized engineered wood walls, traditional light wood frame construction, and a central mass timber foyer, showcasing a deliberate “right material in the right place” approach. Built using offsite fabrication and carefully sequenced installation, the project demonstrates how coordination and precision can be leveraged to deliver a refined wood building that balances efficiency, constructability, and architectural expression.

Together, these stories offer a snapshot of a sector defined by creativity, technical rigor, and resilience—whether navigating rugged mountain terrain, unpacking the realities of construction costs, or reimagining how cultural buildings are delivered. We hope they inform, inspire, and perhaps even entertain.

ProTEKtor II® – Technical Data Sheets

The ProTEKtor II® Technical Data Sheet provides detailed product and performance information for BarrierTEK’s ProTEKtor II® fire-protectant treatment used on wood frame and sheet components. The document is intended for designers, builders, specifiers, and code officials who require clear, concise technical data to support product evaluation and specification.

The TDS outlines key product characteristics, application parameters, and performance attributes for treated wood framing members and sheet goods, including compatibility considerations and relevant fire performance data. It serves as a practical reference for understanding how ProTEKtor II® is applied to enhance fire protection in both exposed and concealed wood-frame assemblies.

Developed as a technical reference, this data sheet supports accurate specification and informed use of ProTEKtor II®, helping project teams integrate fire-protectant-treated wood products into wood-frame construction with confidence and consistency.

AtTEK – Fire Protection for Attic Applications

The AtTEK® – Fire Protection for Attic Applications Technical Data Sheet provides detailed product and performance information for BarrierTEK’s AtTEK® fire-protectant treatment used in wood-frame attic assemblies. The document is intended for designers, builders, specifiers, and code officials requiring concise technical data to support product evaluation and specification.

The TDS outlines key product attributes, application parameters, and performance characteristics relevant to attic framing components, including treatment coverage, compatibility with wood products, and applicable fire performance considerations. It serves as a quick-reference resource for understanding how AtTEK® is used to enhance fire protection in concealed roof spaces.

Developed as a technical reference, this data sheet supports accurate specification and informed use of AtTEK® in attic applications, helping project teams integrate fire-protectant-treated wood into wood-frame buildings with clarity and confidence.

Assurance with Insurance

BarrierTEK’s Assurance with Insurance document outlines how the use of BarrierTEK fire-protectant-treated wood products can support risk management and insurance considerations in wood-frame construction. The resource is intended for building owners, developers, designers, and construction professionals seeking greater clarity on how fire performance measures may influence insurability and project risk profiles.

The document discusses the role of fire-protectant treatments in reducing fire risk, with a focus on concealed and exposed wood framing applications. It highlights how enhanced fire performance can align with insurer expectations and loss prevention strategies, helping project teams better understand the relationship between material selection, fire safety, and insurance outcomes.

Developed as an informational reference, Assurance with Insurance supports informed conversations between project stakeholders and insurance providers, offering insight into how proactive fire protection strategies can contribute to improved confidence and resilience in wood-frame buildings.

ProTEKtor II® – High Performance Fire Protectant for Wood Frame & Sheet Components

BarrierTEK’s ProTEKtor II® – High Performance Fire Protectant for Wood Frame & Sheet Components document provides technical guidance on the use of ProTEKtor II® fire-retardant treatment for improving fire performance in exposed and concealed wood-frame construction. The resource is intended for architects, engineers, builders, and code officials involved in projects where enhanced fire protection for wood framing and sheathing is required.

The document describes product properties, treatment processes, and performance characteristics of ProTEKtor II® when applied to wood frame members and sheet goods such as plywood and oriented strand board (OSB). It outlines how the treatment supports fire safety objectives by reducing flame spread and contributing to improved fire resistance across a range of wood-frame assemblies.

Developed as a practical technical reference, the ProTEKtor II® document supports informed specification and application of fire-protectant-treated wood products, helping project teams integrate enhanced fire performance into wood-frame buildings while addressing code and design considerations.

Wood Design & Building Magazine, vol 25, issue 102
Understanding Tolerances in Prefabricated Timber Construction
Guide to Mid-Rise Wood Construction in the Ontario Building Code
Exposed Mass Timber Calculator
Federal Call for Proposals Opens Under $500M Forest Sector Transformation Investment
Wood Design & Building Magazine – Sign Up
Limberlost Place: Video Case Study
Wood Design & Building Magazine, vol 25, issue 101
AtTEK – Fire Protection for Attic Applications
ProTEKtor II® – High Performance Fire Protectant for Wood Frame & Sheet Components
Nous avons le plaisir de vous présenter le Rapport annuel 2024 du Conseil canadien du bois (CCB), qui met en lumière les progrès, la résilience et les retombées...
We are pleased to share the Canadian Wood Council’s 2024 Annual Report, offering a clear view of the progress, resilience, and impact achieved over the past year. In his...

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