Abstract <p>A comprehensive study was conducted to examine the influence of the areal density of fabric on the strength and impact resistance of glass fiber-reinforced plastics. It was shown that with increasing the areal density, the tensile and flexural modulus of fiberglass composites increases, as well the specific modulus. A more complex relationship between the tensile and flexural strength of glass fiber-reinforced plastics and the areal density of fabric was revealed. The deformation of composite plates with varying reinforcing fabric thicknesses under impact loading was analyzed using the <i>ANSYS</i> software package. High convergence of the modeling results with experimental data was demonstrated.</p>