With a foot print of 10 x 20 feet they will fit almost anywhere

Model Number: 6-31749

This is an MRC 0001628 HO Scale DCC Accessory Decoder 4-Output

During the same time period

The Trainz SKU for this item is P12191587

Broadway Limited 4992 HO Union Pacific P3 4-12-2 Steam Loco/DC/DCC Sound ProductID_12151966 With a foot print ofThis is a Broadway Limited 4992 HO Scale Union Pacific P3 4 12 2 Steam Loco DC DCC Sound & Smoke #9513. It Features: NEW Paragon3 Sound & Operation System FEATURING ROLLING THUNDERTM with Authentic Sounds and Prototypical Operation in both DC and DCC environments, Synchronized Puffing Smoke with each Chuff, Variable Puffing Smoke Intensity and Timing, Composition: Heavy weighted brass construction and detail, All Driver Drive and All Wheel Electrical