Being a big fan of 9V trains, I never had enough room to build upon. Except when I took over the living room for weeks on end. With some good input from Dan Parker and Steve Barile, I've developed plans for a modular table. Here is a picture of four modular tables put together.
Summary: It was my goal to design a platform for building, playing and displaying Lego on. This design meets the following design objectives:
Light and easy to transport
Nearly anyone can build one with very simple tools and materials
Work well with Lego Trains
Work well with Lego bricks
Modular and Flexible in application
Strong and durable
Inexpensive and readily available materials
It is difficult to see, but this table is about 5' x 7.5' and is made up of four separate modules. Two 2.5' x 5' modules and two 2.5' x 2.5' modules. Each module bolts to each adjacent one and can be formed into many patterns. Each leg is modular and can be placed as required to support various configurations.
The modules are sized to work with Lego. A small module is 48 times the size of a 2x2 Lego brick, will hold 9 32x32 stud baseplates. or six lengths of 9V train track in either direction. Also, it allows for a full circle of track to be made within one module. The modules are sized to be light and easy to transport. One person can easily carry a module and the legs are detachable. Holes in the side of the modules are oversized and allow for error in production process or possible misalignments between modules.
Numerous configurations are possible, limited only by the number of modules you build. Assembly is completed by simply bolting modules and legs together with 1/4" bolts. I prefer wingnuts and washers for quick assembly. Legs can be placed as required to support the modules. If X equals the number of modules you have, you will generally need 2X+2 legs.
Drawings are available by downloading the following pdf file:
(22 kb pdf file)