Usually woven fabric has more stretch from selvage to selvage (crosswise)
than lengthwise.
It has the most stretch on the bias -
If you have a spare piece of fabric - cut out a 10 inch square - get a ruler out - now pull this piece of fabric as hard as you can in different directions and measure it at the stretched length - of course, it distorts the rest of the fabric while it's being stretched, but this is kind of an interesting exercise