This publication presented the results of the shear test in laminated beams of “guadua angustifolia Kunth”, following the criteria and the methodology of the European standard DIN - EN - 392, June 1994. Also it presented the results of the effect on the cizalladura caused by the tropical climate (20°C, 85 % HR), and compared with the obtained for the standard climate (20°C, 65 % HR).