of a papermaking fabric 30 is shown the fabric 30 includes machine direction yarns 32 and cross machine direction yarns 34 preferably both the machine and cross machine direction yarns 32 and 34 have a generally boxed shaped cross section with a hollow center this construction provides good contact area and stiffness in the lateral and vertical directions to provide a high stability high contact fabric having a low mass due to the use of hollow yarns 32 34 the box beam configuration also provides exceptional torsion resistance in order to maintain excellent fabric dimensional stability while the portion of fabric shown has a two over two under weave it will be recognized by those skilled in the art from under present disclosure that other weave patterns can be used if desired referring now to fig4 a fourth embodiment of a fabric 40 is shown the fabric 40 has machine direction yarns 42 and cross machine direction yarns 44 the machine direction yarns 42 are illustrated as monofilaments having a circular cross section the cross machine direction yarns are preferably a hybrid cross section combining the box beam and the h beam to provide a high contact area good z direction vertical and y direction lateral stiffness as well as exceptional torsion resistance preferably the machine direction and cross machine direction yarns are extruded monofilaments which are extruded in the known manner the materials used for the yarns can be pet pa polyethylene or any other desired material depending upon the properties required it will be recognized by those skilled in the art from the present disclosure that the fabric embodiments 10 20 30 and 40 as shown above are merely exemplary and that other configurations could be used to provide fabrics with increased stability due to the use of.