6-storey wood buildings

Are you ready to move up?

What will you do with 50% more sellable area?

The Ontario Building Code changed in 2015 to allow wood buildings to go up to 6-storeys from the previous 4-storey limit. It’s an exciting time for developers in Ontario where you can now consider a cost-effective alternative for your sites. Moses Structural Engineers is here to work with you on design, costing and construction. Contact us to help make your next project a success.

Heartwood the Beach Condos, Toronto. Image: Ben Rahn / A-Frame Inc. Design by Quadrangle Architects Ltd. and Moses Structural Engineers, for Fieldgate Urban and Hullmark Developments Ltd.

What will it cost?

The most common question we hear from our developers is “what will it cost?” Combined soft costs and hard costs from other provinces show that 6-storey wood construction offers significant savings. If you are struggling with pricing here in Ontario, contact Moses Structural Engineers. Our team and partners are here to help you make the right choices to suit your project timing and budget.

Cabin Toronto. Image: Artform. Architect: RAW Design; Developer: Curated Properties.

It’s all in the details

Wood buildings behave differently from concrete and steel, and we often need to interface wood with the other materials (for example underground parking, stair shafts, etc.). We will ensure your building meets the performance criteria in the code for gravity, lateral, acoustic and fire design. With our specialization in cutting-edge wood design, you can rely on Moses Structural Engineers to ensure you have the right details.

HOT Condominiums, Mississauga. Image: Quadrangle Architects Ltd.

Speedy Construction without compromise

You can get the benefits of speedy construction without compromising on quality. Moses Structural Engineers has been asked by the College of Carpenters to help ensure the trades are familiar with the technical requirements of taller wood buildings. Prefabrication in wood construction is an option that’s available in Ontario and it can offer unique benefits for your new building. Moses Structural Engineers’ experience in prefabrication for floors, roofs and walls gives you the best in speed and quality during construction.


  • Multi-unit wood-frame engineering
  • Design in steel, wood and concrete
  • Timber, glulam and CLT design
  • Inspections and assessments
  • Custom and multi-unit residential
  • Commercial, institutional and industrial
  • Feasibility studies
  • Third party review

Recent Speaking Engagements with David Moses


Weyerhaeuser Wood-Frame Mid-Rise Building Seminar

Ontario Forest Industry Association AGM

Weyerhaeuser Wood-Frame Mid-Rise Building Seminar

Ontario Mid-Rise Symposium Tour: Ottawa, London, Toronto

Buildability High Rise Training Series – Six Story Wood Buildings

TSA Urban Affairs Forum on “Unlocking the Avenues – Wood Construction”

Ontario Homes Builders Association Conference

Would you like David Moses to speak about 6-storey wood frame design at an event? Contact us for more information.

“David Moses and his team are a pleasure to work with. They find innovative solutions that inspire confidence in doing more with wood. Quality, integrity and sustainability is the top priority when you work with David and he communicates this beautifully through drawings and graphics that are among the best you will ever see from a structural engineer.”

- Marco VanderMaas, Design Director and Senior Associate Quadrangle Architects Limited



Your designs demand detail-oriented structural engineering. We preserve the integrity of your designs and provide the high level of service and attention that your project deserves. Moses Structural Engineers has over 15 years of experience in wood and heavy timber construction and coordination.

OFIA Wood Champion Award 2016

Ontario Wood WORKS! Engineer Wood Advocate Award, 2015, 2013 & 2009

Ontario Wood WORKS! Ontario Wood Award, 2014

Ontario Wood WORKS! Institutional-Commercial Wood Design Award, 2014

Forest Products Society, Wood Engineering Award, 2011

TimberFever Design-Build Challenge, Ryerson University

CSA code committee in the Forest Products Sector

Project collaborator with FP Innovations

Over 40 project awards


As wood buildings go beyond 6 storeys, other hybrid wood structural systems make sense. Our award winning portfolio which incorporates the use of heavy timber, glulam, CLT and wood-concrete composites gives us the tools to make these tall wood buildings possible. Contact us early on in your project so we can work together in making your vision a reality.



  • Moses Structural Engineers Inc.
  • 25a Morrow Ave #202
  • Toronto, ON M6R 2H9
  • Canada