HO 1:87 Railway Scale

HO is a rail transport modelling scale using a 1:87 scale (3.5 mm to 1 foot). It is the most popular scale of model railway in the world. The rails are spaced 16.5 mm (0.650 in) apart for modelling 1,435 mm (4 ft 8 1/2 in) standard gauge tracks and trains in HO. The name HO comes from 1:87 scale being half that of O scale, which was previously the smallest of the series.

Catmodels.com has a great range of Cat HO scale diecast scale models that are ideal for loads on HO scale locomotive flat wagons and as scenery in dioramas.