Wood, because it's abundance and workability, has accompanied the evolution of the way of life the man. Only recently, with the advent of the concrete the use of wood has been reduced. Scientific studies about wood phylical and mechanical proprieties have permited it's use in equal conditions with other materials available in the market. In Spite of the large Amazon Forest. The Amazonian wood species are not being properly utilized. This work presents a method stablished by the Brazilian Standards which could help technicians through the use of tables for dimensional calculations of structural members of solid mod submited to compression parallel to the grain.