The sizes of model train tracks are primarily defined by their scale, which indicates the ratio of the model size to the real-life size.
Understanding Model Train Scales
In the world of model railroading, "size" is commonly referred to as scale. The scale is a ratio, such as 1:87, meaning that 1 unit of measurement on the model is equal to 87 units of measurement in reality. This ratio applies to everything in the model world, including the trains, buildings, and, of course, the track. Different scales result in significantly different physical sizes for the trains and layouts.
Here are some common model train scales and their corresponding ratios:
Common Model Train Scales
| Scale Name | Ratio | Description |
|---|---|---|
| Z | 1:1220 | One of the smallest commercially available. |
| N | 1:160 | Smaller and popular for space-saving layouts. |
| HO | 1:87 | The most popular scale worldwide. |
| S | 1:64 | A less common, mid-range scale. |
| O | 1:48 | A larger, traditional scale. |
| G | 1:24 to 1:32 | Large scale, often used for garden railways. |
- Z Scale (1:1220): These are very small trains, allowing for elaborate layouts in minimal space, such as on a desktop or within a briefcase.
- N Scale (1:160): Still relatively small, N scale is popular for hobbyists who want to model longer trains or more expansive landscapes without requiring excessive space.
- HO Scale (1:87): As the most widely used scale globally, HO offers a good balance between detail and size, making it manageable for most home layouts.
- S Scale (1:64): This scale is larger than HO but smaller than O, offering more detail than HO while still being suitable for indoor layouts.
- O Scale (1:48): Traditionally a popular scale, O scale trains are larger and more robust, often preferred for their presence and detail.
- G Scale (1:24 to 1:32): This large scale is frequently used for "garden railways" or outdoor layouts due to the size and durability of the models. The ratio can vary depending on the manufacturer and specific prototype being modeled within this scale range.
Each scale dictates the physical size of the track (specifically the gauge, or distance between the rails) that the trains run on, ensuring everything in the layout is in proportion.
