TORONTO, Ontario — Recent provisions under the National Building Code  pave the way for tall wood structures up to 12 storeys in Ontario but advice from one experienced builder on the West Coast is that these buildings present plenty of hurdles for the unprepared. While construction times can be shorter with mass timber than concrete and steel, the time savings is lost without a framework of preconstruction, procurement and scheduling laid out ahead of time to minimize disruptions during construction. …Aspect Structural Engineers opened an office in Toronto in 2019 in response to the growing mass timber market. …In partnership with the Canadian Wood Council, Aspect Structural has conducted a cost comparison study between an existing concrete tower and a hybrid mass timber structure comprised of cross-laminated panels and a steel lateral braced system. The study’s conclusions are expected to be released soon.