Climbing spiral supplement sets



  • Dimensions are shown at the bottom of this page
  • Required screws are included
  • Model is made from sustainably produced wood
  • Easily expandable and linkable elements
  • No power tools required
  • Parts fit to the nearest 1mm


More information

Background information:
Climbing spiral replenishment sets can be used to bridge a larger height difference with an optionally lower gradient percentage in the climbing spiral module. The climbing spiral segments each form a quarter of a round. The sets contain 1, 3 or 5 full laps, depending on the type. On each segment it is already indicated where the center lines of the tracks could come, in the scales 1:160 (N) and 1:87 (H0). The set nuts required to adjust the climbing spiral segments on the thread ends are also included in these sets.

Calculating the required number of spiral rounds is simple: Divide desired total rise height by desired rise height per round.

A shadow station is 300 mm below the surface of the upper module. The net height difference is therefore 300 mm. Desired rise height per round is, for example, 60 mm. Sum: 300mm / 60mm = 5 rounds.

Center lines are already engraved on the climbing spiral parts so that, for example, flex rails can be easily and neatly placed. For those who want to calculate whether standard bended rail parts would also fit: The net free radius space between the inner and outer threaded ends is between 363mm and 492mm.

Consult the free downloadable explanation and manual below for more information.


Number (kits) per package
Optionally a set of 1, 3 or 5 laps


Manual with tips, building description and photos
Explanation with tips, descriptions and photos