Custom and standard bridges for G scale, O scale, and garden railways

Gnome Miniature Engineering is located in Ontario, Canada, in a place that we acknowledge to be the traditional land of the Six Nations of the Grand River.

GME MODEL RAILWAY BRIDGES are multi-scale working structures for small railways rather than scale models. They are hand built from laser cut, brake formed parts, and assembled by traditional solid riveting. Structures designed to your own requirements are available when standard parts are used.

Standard bridges are built from corrosion resistant materials for year round operation on garden railways. They are ready to use, painted or unpainted, except for the installation of the track. They have been used with track from 16.5mm gauge for 0n30 to 63.5mm for Gauge 3.

GARDEN RAILWAY BRIDGES: plate girders and underslung trusses for G and larger scales.

O and S SCALE BRIDGES: plate girders, through and underslung trusses, bascule bridges.

EDUCATIONAL MODEL TRUSSES: The truss bridges are available as educational models to demonstrate the principles and properties of trusses.

The model number (TR32 etc) indicates the type and length of the bridge deck in inches. For prices, availability, installation drawings and enquiries about custom designs, please contact us at

Updated on 1st September 2019

28 December 2012

Scales and gauges

0 scale is well defined, being 1:43.5 in Europe and 1:48 in North America, but ‘G scale’ is commonly used to describe a range from standard gauge 1:32 (Gauge 1) to narrow gauge 1:20.3 scale, all using 45 mm gauge track.  Many of our bridges are adaptable to all these scales, so please let us know your specific need when enquiring about availability.

For a good description of the principal scales and gauges, Roundhouse Engineering welcomes visitors to their website. The page headed 'Scales and Gauges' in their technical section provides plenty of helpful information (thanks to Chris Loxley).

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