The Walthers Cornerstone 3-Stall Modern Roundhouse will be a hallmark of later steam-era railroading on your layout. These add-on stalls allow you to expand your Modern Roundhouse with additional stalls. Roundhouse size was based on the number of engines coming and going in any 24-hour period, with the busiest terminals requiring full-circle roundhouses, so these extra stalls will allow you to match your roundhouse to your layout's needs.
 
This detailed Modern Roundhouse 3 Add-On Stalls kit includes three stalls on 10-degree centers to make the most of your available space like the prototype. Side walls are included in the Modern Roundhouse kit 933-3260, sold separately. For more realism, interior and exterior brick wall details, fine windows, floor inspection pits and much more are all standard.