You don’t have to weave a separate sample. Just make the warp long enough so you can weave a bit, take that off, wash, and then change the sett on the warp you are using as needed by spreading the threads farther apart or closer together in the reed.
As a beginning weaver, what is the best reed to buy and the best book to get started?
When you have a tight sett in the reed, which reed size should you use?
What should you do when your floating selvedge is at the same level as your warp?
After weaving a plain weave header, should you then retension your warp?
