Comparing rail widths: Lego 10874 vs. Ikea Lillabo vs. Bigjigs Rail

Railway System Track Gauge Width (mm) Track Material Compatibility
Lego Duplo (10874) 38 mm Plastic Compatible with other Lego Duplo sets
Ikea Lillabo 40 mm Wood Compatible with most wooden railways, including Bigjigs Rail
Bigjigs Rail 40 mm Wood Compatible with Ikea Lillabo, BRIO, and other wooden systems

Note:

  • Lego Duplo uses a wider gauge and plastic tracks, making it incompatible with wooden systems without special adapters.
  • Ikea Lillabo and Bigjigs Rail have similar track widths and are fully compatible with each other and other popular wooden railway systems.