In our country, a huge amount of biomass comes from forestry residues. This biomass can be converted into energy through combustion or various chemical processes. The total biomass that can be produced annually from forest-lands, wood residues in the forests and timber processing is estimated to 4,260 x 103 tons (dry matter). Waste timber (old timber) comes mainly from demolished building, pallets, package wood products, disposed of power poles and railroad ties. Information shows that the total amount of waste power poles at national level is about 2,000 tons per year. Data from the Railway Service in Greece has given an estimation of about 1000 tons disposed of railroad ties per year. The wood from disposed of power poles and railway ties can be reused as sawn timber for small scale constructions and production of thermal energy. The shorting out and cleaning of power poles and railroad ties increases the cost of recycling. The recycled paper collected in big cities represent about 20-30% of the total available in the country. Waste wood and paper can be recycled through various processes. Classification of these wastes is important before any utilization, while incineration in municipal incinerators and industrial plants and disposal in landfills should follow national and European legislation.