With this option you choose from a list of scales and gauges with established NMRA (National Model Railroad Association and NEM(Normen Europäischer Modellbahnen) standards. Changes have been made to the NMRA standards since I created this page. There are many other model scales in use. If your choice of scale and gauge is not listed here try Option 2

Step 1: Choose the full size track gauge and model scale.

Full Size Track GaugeModel Scale
"Standard" gaugeZ scale
42 inch gaugeN scale
meter gaugeTT scale
3 foot gaugeHO scale
30 inch gaugeS scale
760 millimeter gaugeO scale
720 millimeter gaugeNEM I/ 3/8 inch scale
24 inch gaugeNEM II scale/ 17/32 inch scale
60 centimeter gaugeNEM III/ 3/4 inch scale
18 inch gaugeNEM IV/ 1 inch scale
NEM V scale
NEM VI scale

When you have made your selections, click this button to move on to

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