Medium weight tear away stabiliser comes in 90cm widths and price is per meter. If you would like more than one meter, add your desired meterage and it will be cut in one continuous length. 
 
I always use stabiliser in my work and sometimes use up to 6 pieces underneath if I am stitching very heavily for one of my animal portraits. Try to cut your stabiliser a few inches wider than your work as it helps get to any corners.