Shop G Scale track for sale, including straight sections, curves, switches, turnouts, crossings, and other track components for indoor layouts and garden railways. Whether you're starting a new railroad, adding a siding, or expanding an established layout, Trainz offers new, pre-owned, and discontinued track for projects of all sizes.
Browse all G Scale Trains, or find large scale track for your railroad from LGB, USA Trains, and Aristo-Craft.
Shop G Scale track for building a new railroad, expanding an existing layout, or replacing track already in use. G Scale and many other large-scale trains operate on 45 mm gauge track, so shoppers may also see this type of track described as G Gauge track, 45mm track, or large scale train track.
Trainz may carry straight and curved sections, switches, crossings, and other track components for indoor railroads and outdoor garden railways, including new, pre-owned, and discontinued track. Because different 45mm track systems are not automatically interchangeable, check the manufacturer, rail material, connections, and geometry when adding to an existing railroad.
The 45 mm measurement refers to the track gauge, or the distance between the inside faces of the two rails. G Scale trains commonly use 45 mm gauge track, but the same gauge is also used by large-scale models representing different scale proportions. This is why terms such as G Scale track, G Gauge track, 45mm track, and large scale track are often encountered when shopping for this part of the hobby.
Sharing a 45 mm track gauge does not mean every locomotive, car, or track system is otherwise identical. Model proportions, minimum curve requirements, rail profiles, joiners, and other specifications can vary, so gauge is only one consideration when choosing track and equipment.
A G Scale railroad can range from a simple indoor loop to a large garden railway with multiple routes. Straight track creates longer runs, while curves, switches, and crossings can be used to build passing sidings, branches, yards, and more complex track plans.
Curve size is especially important with large-scale trains. Compact locomotives and shorter cars may operate on tighter curves, while larger locomotives and longer passenger or freight cars can require broader curves. Check the recommended minimum radius or diameter for the equipment you plan to run before choosing a track plan.
G Scale and 45mm large-scale track are widely used for outdoor garden railways. A railroad can be incorporated into a garden, patio, or backyard, where the available space may allow longer runs and broader curves than many indoor layouts.
For an outdoor railway, the track base, drainage, rail material, and connections all deserve consideration. Leaves, dirt, weather, plant growth, and movement of the ground can affect track over time, so cleaning rails, checking connections, and making occasional track adjustments are normal parts of garden railway maintenance.
Not every track product is intended for the same conditions, so check the manufacturer's specifications before installing a particular track system outdoors.
Many G Scale and large-scale track systems share the same 45 mm gauge, but common rail spacing does not guarantee that track from different manufacturers will connect directly. Rail profile, rail material, joiners, tie design, switch geometry, curve radius, and other specifications can differ between systems.
If you are expanding an existing railroad, matching the manufacturer and track system already in use is often the simplest approach. Different brands can sometimes be combined successfully, but check the specifications and connections of the individual track pieces before purchasing a large amount of replacement or expansion track.
Buying used G Scale track can be a practical way to expand a large railroad, add a larger quantity of track at once, or find pieces from an older system. Trainz inventory can include individual pre-owned track sections as well as used G Scale track lots with multiple straight sections, curves, switches, crossings, and other 45mm track components.
Pre-owned inventory can also be a good place to find discontinued G Scale and large-scale track that may be difficult to locate new. When shopping used track or track lots, compare the manufacturer, product line, rail material, curve radius or diameter, section length, joiner style, condition, and exactly what is included before adding it to an existing railroad.
G Scale trains commonly operate on track with 45 mm between the inside faces of the rails. Because of this, shoppers may see terms such as G Scale track, G Gauge track, 45mm track, 45 mm gauge track, and large scale train track used for overlapping products. The terms are not technically identical, however: 45 mm describes the track gauge, while models operating on that gauge can represent different scale proportions.
G Gauge is commonly used to describe the 45 mm track gauge associated with G Scale and other large-scale trains. The term refers more directly to the track gauge than to one exact modeling proportion.
No. Although 45 mm gauge is extremely common in G Scale and large-scale model railroading, not every train described as large scale necessarily uses the same track gauge. Check the specifications of the locomotive or rolling stock before purchasing track.
Many G Scale and large-scale track systems are made with garden railway operation in mind, but outdoor suitability varies by manufacturer, rail material, ties, connections, and specific product. Check the manufacturer's recommendations for the track you plan to use.
It depends on the rail material. Brass track does not rust like steel, but it can oxidize and develop a dull or dark surface. Dirt and oxidation can interfere with electrical contact on track-powered railroads, so periodic rail cleaning may be necessary. Other rail materials can weather differently.
There is no single curve radius for all trains that operate on 45mm track. Compact locomotives and shorter cars may handle tighter curves than larger locomotives and longer rolling stock. Check the minimum curve requirements of your equipment before choosing track.
Sometimes, but having the same 45 mm gauge does not guarantee direct compatibility. Rail profile, rail height, joiners, geometry, materials, and other specifications can differ between manufacturers and track systems.
Yes. Depending on current inventory, Trainz may offer pre-owned, estate-find, vintage, discontinued, and hard-to-find G Scale and large-scale track, including individual sections and larger track lots.
