North Raleigh Model Railroad Club

T-TRAK Module Information

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Table of Contents
Module Information
What is T-TRAK
What is a T-TRAK Module
Special Features
Module Images

Introduction

The module is the basic component of a T-TRAK layout. Details of the modules that will be part of a layout, whether at a local clubhouse or at a train show, are vital to the successful design of the layout, in which various modules are interconnected.

What is T-TRAK

T-TRAK is a simple, easy to build system of small N scale modules that can be combined to create a portable N scale layout. T-TRAK originated in Japan as a method of creating a modular layout on hotel banquet tables, which are 30" x either 72" or 96". The basic module is 8-1/4" x 12-1/8", slightly narrower and slightly longer than a standard sheet of paper. Modules use Kato Unitrack, and are sized to use Unitrack rail joiners to lock the modules together. Modules are combined to create a layout on a table, or multiple tables.

As well as banquet tables, T-TRAK layouts can be constructed in small spaces such as a kitchen table or even on a bookshelf. More and more NTRAK clubs are adding T-TRAK layouts of varying size at train shows. Some are using T-TRAK layouts in place of normal NTRAK layouts in venues with limited space.

More information can be found on NRAIL's T-TRAK pages and elsewhere on this site.

What is a T-TRAK Module

A basic module is approximately the size of an 8-1/2" x 11" piece of paper. Other dimensions are possible, but this is the most common.

There are normally two standard tracks on a T-TRAK module — the two main lines. The main lines are designated (from the front of the module) Red and Yellow. Additional tracks can be added to modules for specific needs, e.g. sidings, industrial spurs, yard tracks, etc.

By connecting modules together, several people can build a layout limited only by the number of available modules, the number of available tables and the square feet of available space. The smallest layout would be modules on one table. A larger layout could use over 500 modules.

The basic reference for T-TRAK modules is NRAIL's T-TRAK Standards & Recommended Practices available at NRAIL, or from your local T-TRAK club.

Read the T-TRAK Division for more information.

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Special Feature Modules

There are many special features that can be added to a basic module to improve its operation and appearance, and enhance the railroading experience presented by the Club. This section defines these special features and their symbols.

Corner Module	Some modules are corner modules. These can be inside or outside, etc.
Industrial District	Some members have constructed modules featuring industries and associated trackwork. These are designated as "Industrial District" modules. They provide locations for trains to drop off and/or pick up cars.
Junction Module	This is a special-purpose module which permits the joining of multiple module loops together along a "backbone" to create a larger layout.
Military	Some modules include things of a military nature.
Siding	Some modules feature a passing siding(s) connected to one of the main tracks.
Weird	Some modules are just plain strange...
Yard Facility	In order to provide a facility for deploying and recovering trains, several members have constructed modules featuring yards. These tend to be busy places for keeping trains running during a show.

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T-TRAK Module Images

Below are several examples of T-TRAK modules.

Farm	The Cut	Legoville East

Mills Sawmill	North Pole	YAVIN 4

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Last updated: Thursday, February 12, 2026

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