you can bolt modules together side-to-side in any configuration

Trainz Product Id: 12284596

This is a USA Trains R19087A G Scale Illinois Central Simulated Wood Box Car #137087 (Box Car Red)

This is a IHC 5112 HO Scale Carnival Sky Wheel Model Building Kit

Model Number: 6-47930

Vollmer 3800 HO Modern Office Building Kit ProductID_12102901 you can bolt modules togetherThis is a Vollmer 3800 HO Modern Office Building Kit. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Vollmer Model Number: 3800 MSRP: $81. 99 Scale Era: HO Scale Model Type: Building Kits The Trainz SKU for this item is P11541281. Trainz Product Id: 11541281