The layouts on this page have been designed with narrow gauge tracks from TrixBrix. The narrow gauge system is two studs smaller than the standard LEGO train system. Sleepers in the narrow gauge system are only 6 studs wide. TrixBrix offers six different narrow gauge radii (R24, R36, R48, R72, R84, R96), crossings, switches and a double crossover.

Narrow gauge tracks can be integrated into standard tracks with special rails, turnouts and slides. The principle of uniting the two gauges on a single track is called “dual gauge”.

Narrow gauge switches can be motorized with the same switch motors as standard gauge switches.

The Bluebrick files can be downloaded here.

Narrow Gauge Layout with Loops

Narrow Gauge Maze

Narrow Gauge Maze XP

Narrow Gauge 2 Loops with standard gauge pass

Narrow Gauge Loops with standard gauge pass (2)

Narrow Gauge Layout with Loops

Narrow Gauge Radii

From outside to inside: R96, R84, R72; R48, R36, R24. The standard distance in the narrow gauge system between the tracks is 12 studs from middle to middle, and 6 studs between the sleepers.

Narrow Gauge R84 Oval

This oval uses R84 und R96 Curves and R84 Switches.

Narrow Gauge R84 double branch

This double branch uses Curves with R84 on the outside und R72 on the inside. Switches are R84, the crossing is a 22,5° R84 crossing.

Narrow Gauge R84 Ballast Curves

This plan shows the correct usage of R84 ballast curves. These tracks are strongly asymmetric, so the correct application is important.

Narrow Gauge R84 Loop

To build this R84 loop in a geometrically correct way, the second curve behind the peak of the left R84 switch must be a right R84 ballast curve.

Narrow Gauge R84 Track Change

With this combination of R84 switches and the R84 crossing, independent track switches are possible. The sketch also shows the application of R84 switches for changing tracks between parallel narrow gauge tracks.