Roco · H0 · 16.5 mm
Roco Line: track planner from your own stock
27 items with verified geometry. Enter what you have, let the Auto-designer lay ovals, passing loops and stations, and view it in 3D at your table size.
How much space does a layout with this system need? How much space do you need for a Roco Line layout?
Open the app · Track plan generator
What the Auto-designer gets out of a typical Roco Line drawer
Diamond on R2, plus 2 passing loops
32 pieces · 6.0 m of track
4x 42410, 4x 42411, 4x 42412, 12x 42422, 4x 42428, 2x 42442, 2x 42443
Station with two platforms on R2
32 pieces · 6.0 m of track
4x 42410, 4x 42411, 4x 42412, 12x 42422, 4x 42428, 2x 42442, 2x 42443
Dogbone on R3
24 pieces · 4.8 m of track
4x 42410, 2x 42412, 2x 42413, 16x 42423
From the TrackDrawer Guide
- Cork and sound deadening under your track
- DC and AC: two-rail and three-rail explained
- Sectional track or flexible track: which should you choose?
- Mixing Märklin and two-rail: why it does not work
- Benchwork: open frame or solid baseboard?
- The double slip: when you need one
- Left, right and symmetrical turnouts explained
- Your layout will not close: a gap of a few millimetres
- Double oval: two trains at once
- How much space do you need for a Roco Line layout?
- Roco geoLine or Roco Line: the differences side by side
- An H0 layout on 240 x 120 cm: what fits?
- Give your old box of track a second life
- An H0 layout on 180 x 90 cm: what fits?
Geometry
| Radius | mm | Curve | Angle |
|---|---|---|---|
| R2 | 358 | 42422 | 30° |
| R3 | 419.6 | 42423 | 30° |
| R4 | 481.2 | 42424 | 30° |
| R5 | 542.8 | 42425 | 30° |
| R6 | 604.4 | 42426 | 30° |
| R9 | 826.4 | 42427 | 15° |
| R10 | 888 | 42428 | 15° |
| R20 | 1962 | 42430 | 5° |
Power: 2-rail DC. Roadbed width 30 mm. Parallel spacing 61.6 mm.
Turnout pattern: 42442 / 42443 with counter curve 42428; compensation 42410 + 42412.
9 combinations are recalculated on every build: circles that close, turnouts that land on the parallel spacing.
Items (27)
Straight track
- 42410 Straight track G1 (230 mm)
- 42412 Straight track G1/2 (115 mm)
- 42413 Straight track G1/4 (57,5 mm)
- 42406 Straight track G4 (920 mm)
- 42411 Diagonale rail DG1 (119 mm)
Curves
- 42422 Curved track R2 30° (358,0 mm)
- 42408 Curved track R2 1/4 7,5° (358,0 mm)
- 42423 Curved track R3 30° (419,6 mm)
- 42409 Curved track R3 1/4 7,5° (419,6 mm)
- 42424 Curved track R4 30° (481,2 mm)
- 42425 Curved track R5 30° (542,8 mm)
- 42426 Curved track R6 30° (604,4 mm)
- 42427 Curved track R9 15° (826,4 mm)
- 42428 Curved track R10 15° (888,0 mm)
- 42430 Curved track R20 5° (1962,0 mm)
Turnouts
- 42442 Turnout left 15° (Wl15)
- 42443 Turnout right 15° (Wr15)
- 42488 Turnout left 10° (Wl10)
- 42491 Turnout right 10° (Wr10)
- 42454 Three-way turnout 15° (DWW15)
- 42451 Double slip (DKW) 15°
Crossings
- 42497 Crossing K15 (15°)
- 42498 Crossing K30 (30°)
Flex track
- 42400 Flex track F4 (920 mm, houten dwarsliggers)
- 42401 Flex track F4 (920 mm, betonnen dwarsliggers)
Switching and contact tracks
- 42419 Elektrische ontkoppelrail (115 mm)
Transition tracks
- 42414 Overgangsrail G1/4 naar 2,5 mm-profiel (57,5 mm)
Source: Officiële Roco-brochure 'ROCO LINE H0-Gleissystem' (PDF op roco.cc, ook leesbaar via idoc.pub en de.readkong.com), aangevuld met roco.cc-productpagina's, modellbahnunion.com, modellbahn-dengler.de, modellbahn.at (Rainer Modellbahnen), voelkner.de, smdv.de, menzels-lokschuppen.de, brauchemodellbahn.de, mostviertler-modellbahnhof.at en ewmb.de (onderzoek 2026-10-02).
Other systems in H0
- Märklin C track track planner
- Märklin K track track planner
- Märklin M track track planner
- Märklin my world track planner
- Trix C track track planner
- Roco GeoLine track planner
- Fleischmann Profi-Gleis track planner
- Piko A-Gleis track planner
- Kato Unitrack H0 track planner
- Tillig Elite track planner
TrackDrawer is not affiliated with Gebr. Märklin & Cie. GmbH or any other manufacturer. Item numbers and dimensions are factual product data, with sources cited in the catalogue.