The centerpiece of most engine service area is a roundhouse, and your layout should be no exception. The Roundhouse was a hallmark of steam-era railroading, and some of these classics are still used today. No matter the weather, workers could easily inspect and service locos under cover. Size was based on the number of engines coming and going in any 24-hour period, with the busiest terminals requiring full-circle roundhouses.
It includes easy-to-follow assembly instructions, and multiple kits can be combined to make larger roundhouses.