What Size Model Train Fits Your Needs?
The first decision anyone beginning the model railroading hobby has to make is what size train fits their budget and available space. You might think that the largest size model would be the first choice of everyone, but that isn’t the case at all. A small model train allows for much more scenery in a smaller space and opens up the creative process that is such a huge part of the modeling hobby.
If you are not a student of model train history, you might be surprised to learn of how many different sizes have been produced over the years. When we talk of size, there is always the question of scale and gauge. Scale is the relative size of the model to the real prototype, while gauge is based on the sizing of the track. Gauge does not always match scale for differing reasons.
Some scales were not well received nor standardized, so they don’t bear mentioning in the selection process. Concentrating on the more common sizes of trains, here are the usual choices:
G Scale
Often referred to as the “garden” size, G is the largest of the true model trains. It has some variations between manufacturers and country of origin. The most standard scale for the G is 1:22.5, but there are variations between 1:19 and 1:32. Unless a person has a very large area inside to accommodate this size train, it is doubtful that it will be the first choice. Although G does not stand for garden, it is often called that because that is where many trains of this scale are placed.
O Scale
Approximately 1/2 the size of the G, O scale models also have a disparity in actual scale based on where the train is marketed. In the U.S., the scale is 1:48, but two other scales are produced. In the United Kingdom, the scale is 1:43, but the rest of Europe uses 1:45. O scale is also more popular in Europe than in America.
HO Scale
As you might guess, if you look at the scale of 1:87, this classification is for half the O scale. Technically it isn’t exactly 1/2, but that is why it is so designated. This size gets the model down to a size that can fit comfortably in the home, and there are many more of these sold than the larger O and G scale trains.
N Scale
The most popular scale of model train is the N, which is about 1/2 the size of the HO at a ratio that is variable between 1:148 and 1:160. This is number one in the U.S. and most of Europe except for Great Britain.
OO Scale
The favorite in Great Britain, the OO scale has a ratio of 1:76.2.
What all of this means is that you should see the different scales of trains personally before deciding on one or the other scale. A visit to a model train show is an excellent way to see a variety of scales and sizes and decide which train scale is best for you. Obviously, the more common and popular sizes will be easier to find and collect. Scenery items and train accessories for popular scales will also be more easily found. When you choose a scale, keep in mind that each has some variations, especially in gauge. Sometimes sizes are shown with trailing numerical dimensions that indicate the track gauge.
Every other decision you make on model trains depends on the scale and gauge you choose in the beginning. You do not want to change scales after you begin building a set because every item you buy is designed for a standard size.
About the Author
Thomas R. Anderson’s love for model railroading started when he was 7 years old, from a train under the Christmas tree. Now, all grown up and a full-fledged hobbyist, he loves sharing his knowledge of the model train hobby. He is a writer for the Model Train Hobbyist website, where hobbyists like himself can find scale model trains and brand names such as Bachmann Model Trains.
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