1/4″ scale Information and Modeling Techniques
Our models start out with the correct gauge of 4′ 8 1/2″ and scale AAR wheel profile and continue throughout the model to create an accurately scaled replica of the prototype.
About Proto48
Our models start out with the correct gauge of 4′ 8 1/2″ and scale AAR wheel profile and continue throughout the model to create an accurately scaled replica of the prototype.
Proto48 History
The history of model railroading has been one of steady and constant improvement in quality and accuracy.
Specifications
Proto48 is firmly established as an alternative to O gauge and models can be converted within a few hours using simple tools.
Suppliers
A wide range of products is offered increasing the pleasure of accurate model building and operation.
Latest Proto48 Products & News

Proto48 Layouts
From large, basement size empires, to smaller switching displays, check out and be inspired by some of the best Proto48 layouts around the world.
Articles & Tips
This section of the site presents an opportunity for you to contribute your modeling efforts and be seen by the Proto48 community. We encourage you to contribute to this list of articles and tips to enhance you models or your skills.
Send us pictures of your models, write a few captions and send it in.
Small Projects to Improve Your Track Modeling Skills
I often hear modelers tell me they don’t want to…
Building a Small Turntable
Recently, Robert decided to convert an On3 turntable kit into…