Hi Clint,

Since I can't see you scene, I'll take a guess at what is going on. 

When you start a project, you can choose between 3 scene scales: small, medium and large. Regardless of which one you pick, the presentation of the Assembly room is always the same. However, the Spline and Vertex rooms will present at different scales that you set independently while in the modelers. 

So, if you started your scene with the Small scale, the entire Assembly room grid is 30x30 inches. A 1' cube will take up more than a third of the Assembly room.

Mark