The simplest type of support (called "benchwork") for a model
railroad is a simple table. Often used is a 4x8 sheet of plywood,
but be sure to add extra stiffening. While simple a table top
offers little flexibility in terms of different levels of terrain.
More flexible is the open grid of vertically oriented structural
members typically 1x4s. A particularly useful for is the
so-called L-girder.
Finally there have recently been developed several sets of physical and
electrical interface standards for modular sections that can be
combined to form different layouts. (See TrainPlayer FreeMo
layouts.)
