Composite materials are made in order to achieve properties that are not achievable with individual components. The biggest advantage of composite materials is low mass with good mechanical properties and therefore they are becoming more and more present in various branches of industry, especially in the transport industry. This paper describes the division of composites according to the matrix material and reinforcements, where the greatest attention was paid to fiber reinforced polymer composites. The most significant methods of composite processing are described, with an emphasis on the hand lay-up procedure used in the experimental part of the paper. The industry is showing increasing interest in making roving preforms that are close to the size and shape of the finished product for fiber-reinforced composites. Traditionally, the preform was made of 2D fabrics, but recently it has been shown that 3D fabrics can be used successfully. The main advantages of 3D fabrics include weight reduction, removal of delamination, reduced risk of cracks, shorter production time and reduced costs. The main advantage of weight reduction is also the backbone of this thesis to establish the application of these materials in the transport industry. In the experimental part, the production of five composite panels made from Parabeam 3D glass fabrics is described. Tensile, flexural properties and toughness tests were performed. Based on the results, a comparison and analysis was performed.