Abstract—This paper demonstrates how structural engineers can benefit from cost-effective wind tunnel studies to obtain critical structural performance issues that otherwise cannot be found very accurately through analysis. In the present study, a 1:100 scale rectangular building model with plan dimensions of 10 cm x 20 cm and height of 70 cm has been considered for pressure measurement studies in a boundary layer wind tunnel under open terrain condition. The measured pressures have been integrated to evaluate mean force coefficients along the body fixed axes (X and Y) and also along drag (in the direction of wind) and lift (in the direction perpendicular to wind) coefficients. Design forces are computed by Codal procedure and its comparison with the forces obtained from pressure studies of the present work has been done. In the present case, experimental test results showed good comparison with the Codal values for along-wind force.