Originally Posted by CompulsiveQuilter
If they are already cut, how does one tell the difference?
Cut a couple 5" squares. Just make sure it's cut on the straight of grain (iow, don't grab a scrap where you can't tell ;-) ).
Or use some squares from a charm pack.
Now stretch a square gently on the east/west axis. And then do it on the north/south axis.
One way will be tighter and have less give - that's the warp (lengthwise - parallel to the selvage).
And the other way will have more stretch in it - that's the weft (width-wise/crosswise).
For Bea's problem with 2" squares, it's really not a issue, and wouldn't make much of a difference, because as Prism99 & ckcowl both said, they're just 2". ;-)
But there are instances when it's beneficial to take that into consideration. It can reduce stretching and strengthen the construction. Even when you're not dealing with any exposed bias edges.
It's the sort of thing you don't notice until you do it, and then you realize how wonky the previous attempts really were. :mrgreen: