I don't know what the regular teak costs but from what I was told, the synthetic he has can be purchased two ways. One is by the roll which Ithink were less than 4" wide and I'm not sure how much that was. He did his that way and it looks good but took a lot of time.
The other way is to make a template if the area and send it in. They will lay up the material, bond it together and send it to you. The cost for this was about $20 per square foot. I was thinking about doing this on mine since I'm almost certain my teak is shot. By the way my neighbor was talking I'm thinking it's cheaper than replacing the teak. It would be good to get pricing per square foot to do teak for a comparison.