Not if you set it facing across the short edge of the board there's not.
I did a quick doodle of it in Paint using the grid.
At 18 long, 8 wide, a ISD in the center of the table would be able to cover about 95% of the table space. There's about a 5 inch space on either of the short edges that aren't in range of a ISD in the center of the table.