GME (GNOME) structures are hand built from laser cut, brake formed parts, and assembled by traditional solid riveting. They capture the proportions of full size bridges, but are multi-scale working structures for small railways rather than exact scale models. The design and construction allow us to build custom bridges to your own requirements at a reasonable cost where standard parts can be used. Our standard bridges are built for year round operation outdoors, so corrosion resistant materials are used throughout. They are ready to use, painted or unpainted, except for the construction of the bridge piers and installation of the track by the customer. They can be used with track from 16.5mm gauge for 0n30 to 63.5mm for Gauge 3.