Track & Roadbed

Code (Rail Height)

A measurement indicating rail height in thousandths of an inch (e.g., Code 83 = 0.083 inches tall).

Full Definition

Rail code indicates the height of the rail in thousandths of an inch. Common HO codes include Code 100 (0.100"), Code 83 (0.083"), and Code 70 (0.070"). Lower code numbers mean shorter rails that appear more prototypically accurate. Code 83 has become the most popular choice for serious HO modelers.

Examples

•Code 83 rail is the most popular choice for modern HO layouts

Tips & Best Practices

Transition track pieces can connect different rail codes smoothly

Related Terms

Flex Track

Track sections that can be bent to form curves of various radii, offering layout design flexibility.

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