Model Train Track Plans of Micro Sized HO-scale Layouts (Part 1)

This article will show 3 ready-to-build examples of micro sized HO-scale layouts, created with SCARM and sent to me by Petar Ploskov. These plans are really “micro” for HO (1:87) scale with sizes of about 150x100cm (59″x39″) and are suitable for houses and flats where space is limited.

All of them are made with PIKO sectional track pieces, allowing easy assembling and disassembling if there is no option for creating a permanent layout. All of the plans allows analog or digital operation of one or two short trains with continuous running or shunting. However, the small size of the layouts is not suitable for running of modern long freight and passenger trains with long 4-axle coaches, but even these are able to pass, with a loco and two or three cars. All SCARM project files are available for download from the links section below.

1. 140x98cm switching ovals – HO scale

This layout offers two switching ovals (overlapped in the right side) with train station and small storage area.

  • Dimensions: 1400mm x 98mm (55″ x 38.5″)
  • Max. train length: 725mm (28.6″)
  • Max. number of trains on the layout: 3
  • Max. simultaneously running trains: 1
  • SCARM project file: yes (get it from the links below)



You can extend this layout by adding roads and/or changing the already placed structures.

2. 150x105cm complex ovals – HO scale

This layout consists of three mixed ovals with train station and two cargo areas. Depending of the setting of double slip crossing point, you can have a two independent lines for two trains, running together at the same time or one long route for a single train, passing nonstop from one oval to another.

  • Dimensions: 1500mm x 1050mm (59″ x 41″)
  • Max. train length: 950mm (37.4″) / 600mm (23.6″) in cargo areas
  • Max. number of trains on the layout: 4
  • Max. simultaneously running trains: 2
  • SCARM project file: yes (get it from the links below)



As before, you can extend this layout by adding roads or changing the already placed structures and/or terrain.

3. 150x110cm double ovals – HO scale

The last layout in this post offers two ovals (may be set independent) with one train station, one stop and two cargo areas. Like the previous one, here you can also set the double slip turnout in crossing mode and have one long line, passing from inner oval to the outer (and vice versa) or you can have two simultaneously running trains in the both ovals.

  • Dimensions: 1500mm x 1100mm (59″ x 43.3″)
  • Max. train length: 750mm (29.5″) / 645mm (25.4″) in shorter cargo area
  • Max. number of trains on the layout: 4
  • Max. simultaneously running trains: 2
  • SCARM project file: yes (get it from the links below)



Again, you can extend this layout by adding some roads, more structures or changing the already placed buildings and/or terrain formation.

You can create these track plans in the reality as they are proposed here or you may use them as a base for other projects. Many thanks to Petar for making these layouts public to all model train fans and SCARM users :)

See also
Model Train Track Plans of Micro Sized HO-scale Layouts (Part 2)

Featured layouts
SCARM_140x98_HO_micro_layout.zip
SCARM_150x105_HO_micro_layout.zip
SCARM_150x110_HO_micro_layout.zip


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