You need to be either in a state that will or has already adopted the language to the new 2021 Building Code, or prove the safety of the building, which is darn near impossible if you intend to go up over 8 stories. Many states are expected to adopt this language over the next few years. In Canada and much of Europe, mass timber construction has been gaining popularity over the past twenty years. Here in the US, we are just seeing the surge of construction that incorporates mass timber as prime components of the structure. Better late than never.
ICC expands Type IV to allow taller mass timber structures
