Modules: T-TRAK

T-TRAK was originally developed for N-scale, but the standard now includes all scales. The standard has very few requirements, making creativity a high priority. It is a simple, and easy-to-transport wooden box upon which track is attached. Originally developed in Japan where space is at a premium and modelers attending local train shows have to use public transportation, the small boxes make them ultra-portable, perfect for the modeler with limited space. Set-up at shows is typically done using standard folding-leg tables, upon which the modules are placed.

Contact person: Webmaster


The May/June 2017 issue of the NASG's The Dispatch, and the June/July 2017 issue of The S Scale Resource magazines each contain an article by Charles Malinowski describing the layout that he and other members of the Hoosier S Gaugers club created using the S-scale version of the T-TRAK standard. The layout currently has up to 4 straight modules and 4 curved modules. It has been taken to several area train shows in Indiana, as well as the 2016 NASG Convention. If you are interested in T-TRAK for S-scale, contact the NASG webmaster for Charles' contact info, or log into the "Members Only" section of this web site to get Charles' info. He will be happy to answer any questions you might have about S-scale T-TRAK.

An S-scale T-TRAK Module with MTH track
(copyright © Charles Malinowski; used by permission)

Below are a few pages with example layout configurations for T-TRAK modules.

The S-scale T-TRAK Standard

The section covers the details of the S-scale T-TRAK standard, also known as "T-TRAK-S". For S-scale, this standard uses MTH's S-Trax sectional track system. This track system is similar to the N-scale Kato track system, in that it is pre-ballasted. If you happen to have some of the older S-Helper Service track (MTH bought S-Helper Service's tooling when that company closed), you should be able to use that as well.

All Modules

Track Interface
Track Offset *
Track Spacing **
Electrical Connection
2-3/4" to 4"
MTH S-Trax
BWWB ***

Straight Modules

Track Length
Module Length
Max. Depth

Corner Modules

Outer Radius
Inner Radius
Module Size

* the distance measured from the front edge of the modules to the center line of the track nearest the front edge.
** the distance measured from center line to center line of the two tracks.
*** BWWB = blue, white, white, blue wire colors, identical to the N-scale version; there is currently no standard for connectors for S-scale.


Copyright © 2020 NASG, Inc.; all rights reserved