Large/G Scale Model Trains

G scale is the biggest scale train we carry. Standard G scale is 1:22.5, but USA Trains also makes 1:24 and 1:29 scale trains. Our product page will have the scale of the train if different from the standard scale. All G scale trains we carry run on 45mm gauge track. G scale trains can be run inside or outside, which is why it's also called "Garden" scale. This scale is recommended for anyone who has a lot of space to build a layout.