Larger Radius Corners

There are currently 4 "popular sizes" of corners out in the wild as writing this (March, 2025). See Using Mixed Radius Corners & Junctions for examples of how to use a mix of radii for a single layout.

All 4 module examples below are drawn in the same scale.

Standard (Small) Corner - 282 / 315

This is the current Standard Corner - 365mm square (14.370in) and made up of radius 282mm and 315mm pieces.
Corners_00_Standard.png

Medium corner - 348 / 381

The module is 431mm square ( 17in ) and made up of radius 348mm and 381mm track pieces.
Corners_01_Medium.png

Large corner - 447 / 480

This module is 530mm square (20.87in) and made up of 447 mm and 480mm track pieces. (Super-Elevated, double track pieces)
Corners_02_Large.png

Extra-Large corner - 481 / 481+

Kato does not produces a 514mm radius track, so this module uses 481mm radius track for both curves, with a 33mm straight added to each end of the "red line". This replicates the 514 track position, but with a 481mm radius. This module would be 564mm square (22.20in).
Corners_03_XtrLarge.png
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