The influence of warp tension during weaving on fabric breaking strength and breaking elongation of the fabric woven from such a warp, has been investigated. Three different fabrics have been woven, with three different warp tensions applied, and their breaking strength, together with breaking elongation, have been tested. The fabrics have not received any finishing treatment, being tested unwashed and prior to desizing. The results obtained, concerning the field of investigation, indicate that the variation in warp tension during weaving has no influence upon fabric breaking strength, neither warpwise not weftwise, but a significant influence of warp tension applied has been noted on fabric elongation warpwise. No variation in fabric breaking elongation weft wise has been noted among the fabrics woven with different warp tension applied.