The Walthers Cornerstone 3-Stall Modern Roundhouse in HO scale (Part #933 - 2900) is a must - have for model railroad enthusiasts. It's a key piece for both later steam - era and diesel - era layouts. Whether it's rainy or sunny, workers in your model world can easily inspect and service locomotives under its cover. This model has three stalls on 10 - degree centers, making great use of space just like the real thing. With its modular design, you can expand it as much as your railroad needs using the separately - sold Modern Roundhouse Add - On Stalls (933 - 2901). It comes with authentic North American prototype details like interior and exterior brick walls, fine windows, and floor inspection pits. It can hold locos up to 125 scale feet long, and even includes parts for a 145 - foot - long stall for larger engines. Decal signs are also included. The standard building measures 17 - 3/4 x 16 x 5 - 1/2 inches (44.3 x 40 x 13.7 cm), and with the extended stall, it's 20 - 1/8 inches (50.3 cm) long, with a pit depth of 5/16 inches (.78 cm).

Using the Walthers 3 - Stall Modern Roundhouse is easy. First, find a good spot on your HO scale layout for it. You can assemble it right out of the box. If you want to expand it, just buy the Modern Roundhouse Add - On Stalls (933 - 2901) and attach them according to the instructions. When placing locomotives inside, make sure they're up to 125 scale feet long, or use the special parts for larger 145 - foot - long engines. As for maintenance, keep it away from water to prevent the brick details and windows from getting damaged. If it gets dusty, use a soft brush to gently clean it. And remember, when applying the decal signs, do it carefully to make your roundhouse look even more realistic.