I also have a sewing room in a finished basement. I chose a commercial grade Berber carpet which is very tightly woven. Padding will also give you added comfort if you are going to be standing on your feet for any period of time. Basement floors are just naturally cold and carpet will add the warmth you need if you live in an area that experiences cold temperatures in the winter.
Make your sewing area attractive and you will want to spend more time working on your projects.
June in Cincinnati