I have booked a party of 11 (9 adults & 2 two year olds in high chairs). Booked it as a party of 11, and we all fit, wrapping all the way around the table. This was in 2015. In 2017 booked for a party of 8.
We had a party of 7, and they put an additional party with two adults at our table. Two people on each end, five across the long side of the table. We had no problems fitting.