HO Gauge Model Trains
Will build a train layout for you.
HO scale (in North America, Japan, and Australia, and sometimes in Europe,
including the UK) is the most popular scale of model railway in most of the world.
H0 scale, 3.5 mm (0.14 in) represents 1 real foot (304.8 mm); this ratio works out to about 1:87.086. Rails are usually spaced 16.5 mm (0.650 in) apart which models the standard railroad gauge of 1,435 mm (4 ft 8 1/2 in).