Shop G Scale trains for sale, including locomotives, rolling stock, train sets, and large-scale railroad equipment. Trainz offers new, pre-owned, vintage, discontinued, collectible, and hard-to-find G Scale trains for indoor layouts and garden railways.
Explore G Scale Steam Trains, G Scale Diesel Engines, and G Scale Train Sets, or shop G Scale trains from LGB, Aristo-Craft, and USA Trains.
Shop G Scale trains for sale, including locomotives, rolling stock, train sets, 45mm track, parts, accessories, and scenery for indoor railroads and garden railways. Trainz carries new and pre-owned G Scale equipment along with vintage, discontinued, collectible, and hard-to-find large-scale trains as inventory becomes available.
Whether you're starting a garden railway, expanding an established large-scale railroad, or searching for a particular locomotive, car, set, or replacement piece, use the categories and manufacturer collections below to narrow the selection.
Shop all G Scale engines and rolling stock together or narrow the selection by locomotive and powered-equipment type.
Build complete large-scale trains with freight cars, passenger equipment, rail transit cars, and train sets.
Find 45mm track, replacement parts, accessories, and scenery for building, repairing, expanding, and detailing a large-scale railroad.
Browse dedicated G Scale and large-scale collections from popular model train manufacturers.
G Scale is part of the large-scale model railroading hobby and is especially well known for garden railways. G Scale trains commonly operate on 45mm gauge track, but the models themselves are not limited to one exact proportion. Equipment commonly grouped within G Scale has been produced in several proportions, including approximately 1:22.5, 1:24, and 1:29.
The larger physical size provides room for substantial detail and makes G Scale suitable for indoor displays, large layouts, and outdoor railroads. Because proportions, dimensions, couplers, and minimum curve requirements can differ between products, compare individual specifications when combining equipment from different manufacturers or product lines. If you're comparing G Scale with other popular train sizes, our Model Train Scales Explained guide explains the major model train scales and their differences.
G Scale trains commonly operate on 45mm gauge track, which is widely used for indoor large-scale layouts and outdoor garden railways. A railroad can range from a simple loop to a large route with broad curves, long straight sections, switches, sidings, bridges, tunnels, and multiple operating areas.
When planning a railroad, consider the minimum curve requirements of the locomotives and rolling stock, available space, rail material, track connections, and whether the layout will operate indoors or outdoors. Larger locomotives and longer passenger or freight cars can require broader curves than more compact equipment.
G Scale locomotives can use different power and control arrangements. Traditional track-powered trains receive operating power through the rails, while some locomotives use onboard batteries and may be paired with radio or other remote-control systems.
The appropriate setup depends on the locomotive and its installed electronics as well as the railroad itself. Battery operation can reduce dependence on electrical contact between wheels and rails, while track power remains common across many G Scale product lines. Check individual equipment specifications before choosing a power or control system.
Large-scale model train terminology can be confusing because different modeling proportions can operate on the same 45mm track gauge. G Scale and G Gauge are often used broadly within the hobby, while individual product lines may represent different prototype gauges and scale proportions.
Gauge 1 is generally associated with approximately 1:32 standard-gauge modeling, while F Scale commonly uses 1:20.3 to represent North American 3-foot narrow-gauge prototypes. G Scale products can use other proportions, including approximately 1:22.5, 1:24, and 1:29. Sharing 45mm track does not make these models the same scale, so differences in physical size can be noticeable when trains, figures, vehicles, and structures are placed together.
Shopping pre-owned G Scale trains can provide access to equipment that is no longer readily available new, including retired locomotives, rolling stock, older train sets, discontinued track systems, replacement parts, collectible releases, and products from manufacturers or product lines that are no longer in production.
Trainz inventory changes as collections arrive and may include used G Scale locomotives, freight and passenger cars, train sets, individual track sections and used track lots, buildings, accessories, scenery, parts, original-boxed equipment, and new old stock. This changing selection can be especially useful when completing an older train, expanding an established garden railway, or searching for a specific discontinued piece.
Large-scale model railroading has been supported by many manufacturers and product lines over the years, which means a railroad may include both current equipment and models that disappeared from manufacturer catalogs long ago. Trainz's mix of new and pre-owned inventory gives shoppers the opportunity to compare current releases with older locomotives, rolling stock, track, parts, and accessories in one place.
Inventory changes as new products and private collections arrive, so available road names, manufacturers, locomotive types, train cars, track systems, and discontinued pieces can vary over time. That changing selection can be especially helpful for collectors and operators looking for a particular model or equipment needed to expand an existing large-scale railroad.
Trainz purchases qualifying G Scale and large-scale train collections that may include locomotives, rolling stock, train sets, track, structures, scenery, accessories, parts, and other model railroad equipment.
Whether you're downsizing a garden railway, selling a longtime collection, or helping with an estate, visit Sell My Trains – How It Works to learn more about selling your trains to Trainz.
G Scale refers broadly to large-scale model trains commonly operated on 45mm gauge track. Unlike model scales defined around one fixed proportion, equipment commonly grouped within G Scale can represent several modeling proportions.
The terms are often used interchangeably in the hobby, but scale and gauge describe different things. Scale refers to the proportion of the model compared with the prototype, while gauge refers to the distance between the rails. The large-scale trains commonly called G Scale or G Gauge generally operate on 45mm track.
There is not one universal ratio for everything sold as G Scale. Large-scale product lines using 45mm track have been produced in several proportions, including approximately 1:22.5, 1:24, and 1:29. Check individual product specifications when matching equipment by scale proportion.
G Scale equipment can include steam, diesel, and electric locomotives, motorized units, freight cars, passenger cars, rail transit equipment, train sets, 45mm track, parts, buildings, scenery, figures, vehicles, and other garden railway accessories.
Many G Scale trains and track systems are designed with garden railway operation in mind, but outdoor suitability varies by manufacturer and product. Check recommendations for individual locomotives, rolling stock, track, electronics, structures, and accessories before leaving equipment exposed outdoors.
G Scale trains commonly run on 45mm gauge track. Other large-scale modeling proportions, including Gauge 1 and F Scale, can also use 45mm track, so sharing the same track gauge does not mean the models are the same scale.
Well-known manufacturers associated with G Scale and large-scale model railroading include LGB, USA Trains, Bachmann, PIKO, Aristo-Craft, Accucraft, and others. Available brands at Trainz vary as new and pre-owned inventory arrives.
Yes. Trainz carries pre-owned G Scale trains as inventory becomes available, including locomotives, rolling stock, train sets, track, accessories, parts, and other large-scale equipment. Inventory can also include vintage, discontinued, collectible, estate-find, and hard-to-find models.
Yes. Trainz purchases qualifying G Scale collections that may include locomotives, rolling stock, train sets, track, buildings, scenery, accessories, parts, and other large-scale railroad equipment.
