Washing your fabric
Most upholstery fabric will unravel more so than fashion fabric. So, either anticipate a little loss during the wash, or zigzag your raw ends before putting the fabric in the wash. Avoid unnecessary cutting--throwing one piece into the wash will limit loss of fabric.
Notions unique to the fabric
At one time heavy duty polyester thread was being suggested as a replacement for upholstery thread. If you are absolutely desperate, this can be used, however, upholstery thread is made of nylon and is much stronger.