Leroof posted:This is super K line 031, O Gage track.
That's only 14.14" center rail radius, FasTrack O-31 is 15.5" center rail radius with 4" wide roadbed.
A circle of O-31 FasTrack is 35" in diameter over the outside of the roadbed, so that will leave you with 1/2" between the roadbed and the edge of the table.