This work is an experimental investigation of the flexural properties of hybrid matrix composites reinforced with different types of reinforcement, namely short glass fibers, glass beads, and short steel fibers. The aim of this investigation is to determine the mechanical behavior and properties of the composites that were manufactured, as well as to define an optimum composition of the materials used that will result in a composite with enhanced mechanical performance for building applications. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012