One of the reinforcement types for the cementitious composites is fabrics. Fabric reinforcement has found an area of utilization recently in civil engineering industry as an alternative to the short fibers. In this experimental study, the glass fabrics, which are beneficially used in cement based composites, were adapted to a polyester polymer concrete mixture. Polymer concrete (PC) beam samples with the dimensions of 10x50x350mm were reinforced with three layers of glass fabrics. Each layer of glass fabric was inserted into the beam samples during production with equal spacing. For the comparison of the effect of different fabric types on the flexural behavior of the PC composites, three different types of glass fabrics with different densities were selected. In accordance with the flexural tests, the behavior of glass fabric reinforced PC composites was evaluated. Results have shown that, with the use of glass fabric in PC as reinforcement, the flexural strength of the composites can be easily reached up to 40 MPa. Specific fracture energy of the plane PC mixture, on the other hand, was improved up to 10 times depending on the glass fabric type used.