Here is a plan for a beginners first layout for the Lionel Train Table in the recent catalog. The dimensions are 86x58, including a 3/4" border all around the table.
The outside oval is O48 with O60 turnouts making the cross-over pairs. It has an O60 section leading each half-circle as an easement.
The inside oval is O36 with O48 turnouts making the industry spurs. It also uses O60 turnouts and sections leading into each half-circle as an easement.
The layout includes the animated freight station, oil derrick with "nodding donkey", the milk can unloader, and the rotating beacon on the mountain, as animated accessories; plus Lionel's Work House with sound.