Hard wood–polymer composite (HWC) was produced, based on hot press technique, by mixing air-dried rice straw waste, as a filler, into a molten of chemically recycled extended polystyrene foam waste as a matrix. The reached HWC sheet was subjected to mechanical integrity, thermal, radiation and dimensional stabilities, water absorption, in addition to fire, biological and acoustic resistances evaluations. Based on the experimental data, the obtained product is characterized by: - Acceptable tensile and compressive strengths. - Incorporating of fire retardants into the composites enhance thermal stability and fire resistance of the products by acting as a superior insulator and mass transport barrier to the volatile products generated during decomposition. - The obtained HWC showed radiation stability to the gamma radiations up to definite thickness. The mass attenuation coefficients showed that the HWC characterized by detectable radiation shielding; consequently the product would be preferred as shielding material against gamma radiation for buildings, X-ray clinics and labs working with radioactive materials. Hence, HWC under consideration can be candidate, safely, as radiation shielding in most applications replacing the higher densities materials e.g. lead or concrete shields. -For more environmental and economic advantages, at the end of the HWC's useful time, in addition to the remains from production process and continual evaluations during mass production, the generated residues can be collected and repressed again into sheets following the same procedure under the same nominated conditions of temperature and time. The obtained repressed sheet was subjected to a new tensile strength measurement, and it was found that the strength of the repressed HWC disclosed similar values to that of original hard wood composite panel. HWC, based on two wastes namely post-consumer polystyrene foam and rice straw, can be candidate as an added-value environmental friendly product, that requires no maintenance, has acceptable mechanical integrity, acoustic resistance, biological decay resistant, adequate irradiation shielding, thermal and dimensional stabilities. The developed hard wood tiles, can be applied for wide range of applications e.g. automotive parts, construction sector, decoration, picture holders, and others. The obtained hard wood-composite can be, also, covered with veneer then used for furniture fabrication.