The size of a layout varies, from small shelf-top designs to ones that fill entire rooms, basements or whole buildings.

Attention to modelling details such as structures and scenery is common. Simple layouts are generally situated on a table, although other methods are used, including doors. More permanent construction methods involve attaching benchwork framing to the walls of the room or building in which the layout is situated.

In addition to maintaining the layout at the Chattanooga Choo Choo our members have a number of home layouts.