Abstract
The research has conducted to investigate the suitability of cotton stems for the production of standard particleboards. Thirty nine boards were manufactured ; 27 of them were single -layer and 12 were three - layers boards. The research dealt with the effect of particles size, board density, and the number of layers on the board properties. The results showed that the smallest particles improved the properties of the boards. The specific gravity of 0.550 had a very low mechanical but not physical properties. Multi layering of the board duplicated both of modulus of rupture and modulus of elasticity and improved the water resistance. The experiment assured the suitability of cotton stems for the production of particleboards by using the recommended levels of manufacturing variables.
