I have come across lots of FQs that do not have a selvage. I have bought them from our LQS and reputable online sources that are well known. These FQs were cut from wide width fabric instead of the regular 42" -45" widths, thus some pieces may not have been an edge cut with the selvage.
The precision in cutting will depend on the person/machine that does the cutting. We have seen many comments here on how precuts of all sizes can be the wrong measurement and they can come from fabric lines with a variety of prices.
It can be 'luck of the draw' whether the FQs are the right size or wonky. I always "over buy" fabric so I don't come up short when doing a project. This covers not only poorly cut fabric at time of purchase but also any of my mistakes that I may make while working on the project.
