Walthers Cornerstone 933-2901 HO Modern Roundhouse Addition Kit

Grow your engine terminal with the Walthers Cornerstone 933-2901 3-Stall Modern Roundhouse Addition, an add-on kit that enlarges the 3-Stall Modern Roundhouse (933-2900, sold separately) on your HO Scale layout. Like the main structure, it keeps locomotives protected while crews inspect and service them under cover, and it suits both late steam and diesel-era railroading.

The 933-2901 includes three stalls on 10-degree centers without side walls so they attach cleanly to your existing Modern Roundhouse. Interior and exterior brick wall details, fine windows and floor inspection pits are all standard. Locomotives up to 125 scale feet long fit easily inside, and parts for a single 145 scale foot stall are included for handling larger power such as Mallets. The addition measures 16 x 20-1/8 x 5-1/2" 40.6 x 51.1 x 14cm.

Key Features:
- HO Scale (1:87) roundhouse expansion kit, requires assembly
- Item 933-2901 from Walthers Cornerstone
- Adds three stalls on 10-degree centers without side walls
- Designed to expand the Modern Roundhouse (933-2900, sold separately)
- Holds engines up to 125 scale feet long, plus one 145 scale foot stall
- Interior and exterior brick detail, fine windows and floor inspection pits
- Measures 16 x 20-1/8 x 5-1/2" 40.6 x 51.1 x 14cm