Due to their high strength, dimensional stability and positive environmental performance, mass timber building products are quickly becoming materials of choice for sustainably-minded designers. This presentation will review the environmental performance of mass timber products available, including glue-laminated timber (glulam), cross laminated timber (CLT) and nail laminated timber (NLT), and discuss applications such as seismic post-tensioned, self-centering rocking walls; tornado and blast-resistant structures; hurricane and high wind-resisting systems. We’ll provide an overview of key 2021 IBC tall wood code proposals that would see an increase of up to 18 stories for mass timber buildings if approved. Topics will include new construction types, a regime of fire tests conducted to validate the proposals, and an update on the status of the changes.