7 mm scale, also known as British 0 scale is a model railway scale of 1:43.5 (or 7 mm to 1 ft; hence its name). The scale is thus different from
American 0 scale (1:48) and
European 0 scale (1:45) For standard gauge railways, 32mm gauge, or 0 gauge is most commonly used.
ScaleSeven
ScaleSeven (S7) is a set of finescale model railway standards for 1:43.5 (7 mm scale) using true-to-prototype track and wheel standards. It is principally used to model British standard gauge (), Irish Broad Gauge (), or Great Western broad gauge ( ...
(S7) standard however specifies 33 mm gauge, which is closer to scale. For narrow gauge modelling, 16.5 mm gauge
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