The method is only intended for the assessment of dimensional changes undergone by a woven fabric subjected to a single laundering. Washing of a specimen in a cylindrical reversing laundry machine under specified conditions. Extraction of excess water and pressing without preliminary drying. Measurement, before and after laundering, of distances marked on the specimen in the warp and weft directions. Detergent, water, wash wheel, extractor, pressing equipment, and marking equipment for the woven fabric are specified.