I currently use a massage table for shiatsu. During a shiatsu session you may need cushions and blankets for warmth and as props.
The table has an extension to rest the head when lying on the stomach which is helpful for the neck.
For a first session there is time to talk briefly about general health issues, etc. I'm lucky to have this peaceful space at the back of my house to do shiatsu in - it works well for it!