HO-4 Twice Around-Code 100 Track Plan

Digital Layout File for use with Atlas Track Planning Software. HO-4 From Book #9: Beginner's Guide to HO Model Railroading Minimum Table Size Required: 4' x 6' This twice-round plan lets you get double the length of main line in a given space. Using scenic items between the two laps of the main line, you can create the impression that the train is covering different territory in its second trip around the layout. The layout package includes all of the track, switches and electrical components necessary to build the layout.