A rectangular table is a standard table shape with lots of flexibility. It works well as any type of extension table and provides lots of functionality.

A racetrack oval or pill shape offers the best of the rectangle's flexibility and the round's easy use. People can see each other easily and adding extra chairs is no problem. Without the corners it's easy to walk around as well. A racetrack oval can be made into a center extension as well.

A round table is wonderfully classic table shape that offers easy sight lines and comfortable seating. It can also be made into a center extension table to become a racetrack.

A square table is another classic shape that has lots of functionality. Like a rectanlge is can work in many setting for many uses. The biggest factor in choosing a square versus a rectangle is often the shape of the space you have for your table. It can also be an extension table to become a rectangle

An oval, or an elliptical oval, is a table that offers some excellent use, it's easy to see anyone anywhere at the table from anywhere at the table. The tradeoff is that an oval like this has less surface area, and less space for chairs around it than the other table shapes.

A Squoval table is a table shape that offers incredible functionality for a dining experience. At a natural rectangle table, it is only possible to see the person sitting right next to you, where as a squoval bends that line, allowing you to see everyone sitting along the side of the table.