In Gabon, the lawdeclaresthat "the national production of the logs must cover in priority the demand of the local units of transformation". In addition, we note that the primary wood processing industry is very wasteful of the resource today, barely 20 to 30% of the felled tree is valued. Added to this is the decision to ban all log exports with the on-site processing requirement that came into effect in 2010, which has led to an increase in the number of wood processing industries. Finally, the high cost of concrete blocks makes the construction very expensive in Gabon. The objective of this study is to design and manufacture a clay-based adobe brick and sawdust with the best mechanical and physical characteristics of locally produced clay clay brick.The experimental setupused to producethe specimensis composedof an aluminiummold, a sieveand a testing machine.The materials used to make earth bricks are:(i) the 85% clay previously ground with a stone and sieved with a mosquito net; (ii) the Sawdust of three tropical species: Lophira alata (azobe), Aucoumea Klaineana Pierre(okoume),and Pterocarpus Soyauxii(padouk) at 15%. The choice of species was guided by their availability on the Gabonese territory as well as their good physico-mechanical properties.But only the results of okume is presented in this work.As results, okoumesamples presentthe highest compressive strengths, with the highest water contents and the highest absorption rates, unlike the padouk with the lowest data.In addition, the mechanical resistance depends of the rate and the quality of sawdust but also to percentage of clay considered in the design of the specimen.