<p>This review examines how construction, renovation, and demolition (CRD) waste wood can be used as a feedstock to make wood fibre insulation (WFI). WFI may be a suitable option for diverting CRD wood waste from landfills as it requires coarser fibre than other fibre-based wood composites, and it does not need to have a uniform surface finish potentially allowing it to be made from lower-quality wood. Potential pathways are identified for converting different types of CRD waste wood into fibre to produce WFI. The second portion of the review builds on the types of wood waste identified as suitable for WFI feedstock and conducts a regional case study for Metro Vancouver, Canada, to assess the feasibility of using that wood for WFI production based on the mass of suitable wood waste produced annually in the region. The key findings are that thermomechanical pulping (TMP), which is also used for standard WFI production, is likely suitable to process a range of CRD wood waste including solid wood, plywood, and oriented strand board, though more research is needed to confirm the thermal and physical performance of the resulting fibre. Other options which may produce suitable insulating furnish from CRD wood waste include refiner mechanical pulping (RMP), steam explosion refining, and mechanical refining, depending on the intended format of WFI. Based on the type and mass of CRD wood waste produced in Metro Vancouver, using that waste for WFI production could be viable.</p> Graphical Abstract <p></p>