Proceedings of the 59th International Convention of Society of Wood Science and Technology March 6-10, 2016 – Curitiba, Brazil 1 Wood Waste Generated by the Wooden Housing Manufacturers in the Brazilian State of São Paulo Victor A. De Araujo 1* – Juliano S. Vasconcelos 2 – Juliana Cortez-Barbosa 3 – Maristela Gava 3 – José N. Garcia 4 1 Wood Industrial Engineer and Direct-PhD student, Post-Graduation in Forest Sciences, College of Agriculture Luiz de Queiroz, University of São Paulo, Piracicaba SP, Brazil* Corresponding author engim.victor@yahoo.de or victor@usp.br 2 Masters in Urban Engineering and Wood Industrial Engineer julianojsv@yahoo.com.br 3 Assistant Professor Doctor, Wood Industrial Engineering Course, São Paulo State University, Itapeva SP, Brazil jucortez@itapeva.unesp.br, mgava@itapeva.unesp.br 4 Full Professor Doctor, Post-Graduation in Forest Sciences, College of Agriculture Luiz de Queiroz, University of São Paulo, Piracicaba SP, Brazil jngarcia@usp.br Abstract The inconvenience with the generation of wood waste has become an increasing problem among companies of the forestry sector. For that reason, the study aimed to obtain and disseminate the data on the generation and disposal of timber waste of the wooden- housing manufacturers, located in São Paulo State, aiming to assist them on the potential for reuse of their wood waste. For this evaluation, it was applied a questionnaire directed to the owners or their representatives, in order to obtain the volume, characteristics and final destination of the wood waste produced exclusively for a single-storey housing unit of 100 m 2 . It was discovered that most of these house manufacturers have no control or quantification of their residues, and many even have an accurate separation process aiming their reuse. Then, a real opportunity of processing of these wooden wastes in manufactured goods is lost. Thereat, it was discussed the current situation of these timber companies, indicating some ideas for improving their wood waste management. A simple selective collection realized in these industries and on respective building sites could help to mitigate this evident environmental liability. This collection system could be based on the separation of waste into colored dumpsters or containers for three destinations: solid wood, treated wood and wood-based panels. Public incentives will help this sector to achieve its sustainable development with cleaner productions. Key words: Environmental liability, wooden houses, construction, proposals