OO9, often also denoted as 009 or 00-9 and commonly pronounced as Double-Oh Nine, is a model railway scale and gauge combination of 4 mm scale and 9 mm (0.354 in) gauge tracks, …

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We aim to cater for all aspects of small scale narrow gauge railway modelling, both for the beginner and the experienced modeller alike, for the scratch-builder, the kit builder and the …

OO9 is the ultimate space-saver amongst the mainstream ready to-run scales. It is rendered at the 176 scale of standard OO (4mm/ foot), but runs on 9mm gauge track, reflecting a ‘real life’ …

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If you're looking for a fascinating and rewarding hobby, then look no further than OO9 model railways. These are miniature train sets that run on narrow gauge tracks, typically in a scale of …

Through using 9mm gauge track with 4mm (OO scale) models means you can pack a lot of track into a small space that wouldn’t otherwise be possible yet the models are larger than N gauge. …

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What is OO9? OO9 is 4mm to the foot scale (that is OO or 1/76) but using 9mm track gauge (the same size as N gauge). This is narrow gauge modelling and is meant to represent 2ft gauge in …