Day to day demand for timber is increasing as a natural construction material due to its performance, stability, aesthetic, durability and been environmentally friendly. Different timber species have distinct characteristics and those are selected for different applications based on their characteristics. Value of timber varies with physical and mechanical properties and their quality can be improved by thermal and chemical modifications. An industrial survey was conducted to identify most abundantly utilized timber for structural applications in Sri Lanka. Industrial survey was conducted as two distinct surveys such as clusters-based survey and the company-based survey. Under cluster-based survey, 23 clusters; saw mills and treatment plant...