Mantle Developments created a case study on the Canadian Nuclear Lab’s recent mass timber demonstration projects at their Chalk River campus in eastern Ontario. At the time of construction, these three new buildings were the Canadian Federal Government’s biggest and most ambitious mass timber demonstrations. These innovative projects showcase sustainable materials and net-zero-ready construction. On behalf of the Canadian Wood Council’s WoodWorks! Mantle interviewed key members across the project team to collect replicable lessons and processes that helped contribute to the project’s success. These findings are shared to support future mass timber and innovative construction process adoption.