Track Libs


	Page updated: August 14, 2009

Track is the heart and soul of any model railroad, indeed without it there would be no reason for the trains themselves.

RR-Track™ has a total 50 track libraries in 8 different gauges to meet the needs of any train layout from G-gauge to Z-gauge


	11 libraries


	8 libraries


	5 libraries


	15 libraries


	7 libraries


	2 libraries


	2 libraries


	Track Gauge Comparison

Name	Metric Ratio (mm = 1ft)	Track Width	Scale	Minimum Curve Radius
Z	1.39	6.5mm	1:220
N	1.91	9.0mm	1:160	9.75 in
TT	2.54	12.0mm	1:120
HO	3.50	16.5mm	1:87	15.0 in
OO	4.00	19mm	1:76	18.0 in
S	4.75	22mm	1:64	20.0 in
O-27	7.00	32mm		13.5 in
O	7.00	32mm	1:43.5	15.0 in
Proto-48	6.35	32mm	1:48	36.0 in
G (std g)	9.53	45mm	1:32	48.0 in
G (nrrw g)	13.67	45mm	1:22.3	48.0 in
Standard	11.45	54mm	1:26.6	21.0 in

For “tinplate” or “hi-rail” trains, exact scale dimensions were not adhered to. In these cases the the scale name refers more to the diameter of the smallest curved track rather than the size of the train. This is the reason that many newer, 1:48 scale O-gauge trains will not run on O27 or O tubular series track.

In the UK, the scale is referenced by the metric ratio, i.e. 4mm scale or 7mm scale. The metric ratio is the distance in mm that is equal to 1 ft on the prototype.



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