Track system · HO scale

Märklin C: track pieces, radii and turnouts

Märklin C is a three-rail track system with integrated roadbed for HO scale.

The Trackplanner catalogue lists 55 pieces: 20 straights, 16 curves, 4 turnouts, 4 curved turnouts, 1 three-way turnout, 3 crossings, 3 double slips, 2 turntables and 2 transfer tables. The curves come in 6 radii from 360 to 1114.6 mm.

Key facts

Scale	HO scale
Rail system	three-rail
Roadbed	integrated roadbed
Status	current — in production and in the shops
Turnout motor	sold separately: drive 74491, decoder 74462
Pieces in the catalogue	55
Radii	6 · 360–1114.6 mm
Straight lengths	64.3 · 70.8 · 77.5 · 94.2 · 171.7 · 180 · 188.3 · 229.3 · 236.1 · 360 mm
Turnout angles	12.1° · 24.3°

Pieces by type

Type	Count
Straights	20
Curves	16
Turnouts	4
Curved turnouts	4
Three-way turnouts	1
Crossings	3
Double slips	3
Turntables	2
Transfer tables	2

Radii

Radius	Name	Angle	Articles
360 mm	R1	30° · 15° · 7.5°	20196 · 24107 · 24115 · 24130 · 24194
437.5 mm	R2	30° · 24.3° · 15° · 7.5° · 5.7°	24206 · 24207 · 24215 · 24224 · 24230 · 24294
515 mm	R3	30° · 15°	24315 · 24330
579.3 mm	R4	30°	24430
643.6 mm	R5	30°	24530
1114.6 mm	—	12.1°	24912

Helix kits for this system

These kits have a radius that matches one of the system’s curves (within 5 mm). The helix assistant in Trackplanner checks whether the clearance is enough for your rolling stock.

Show all 33 matching kits

Kit	Fits	Gradient	Clearance	Buy
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 356.5 mm, laser-cut plywood supports (Fleischmann Profi-Gleise R1)	for R1, 36.0 cm	3.76 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 356.5 mm, M6 threaded-rod supports (Fleischmann Profi-Gleis R1)	for R1, 36.0 cm	3.98 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 358 mm, laser-cut plywood supports (Roco Line Gleise R2)	for R1, 36.0 cm	3.76 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 358 mm, M6 threaded-rod supports (Roco Line Gleise R2)	for R1, 36.0 cm	3.98 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 360 mm, laser-cut plywood supports (Märklin C-Gleise R1)	for R1, 36.0 cm	3.76 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 360 mm, laser-cut plywood supports (Märklin C-Gleise R1)	for R1, 36.0 cm	3.76 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 360 mm, laser-cut plywood supports (Märklin C-Gleise R1)	for R1, 36.0 cm	2.87 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 360 mm, M6 threaded-rod supports (Märklin C-Gleis R1)	for R1, 36.0 cm	3.98 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 360 mm, laser-cut plywood supports (Märklin K-Gleis Normalkreis I)	for R1, 36.0 cm	3.76 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 360 mm, M6 threaded-rod supports (Märklin Normalkreis I)	for R1, 36.0 cm	3.98 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 360 mm, laser-cut plywood supports (Piko A Gleise R1)	for R1, 36.0 cm	3.76 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 360 mm, M6 threaded-rod supports (Piko A Gleise R1)	for R1, 36.0 cm	3.98 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, double track, radius 360/437.5 mm, laser-cut plywood supports (Märklin C-Gleise R1/R2)	for R1, 36.0 cm and R2, 43.75 cm	3.76 % inner, 3.09 % outer	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, double track, radius 360/437.5 mm, M6 threaded-rod supports (Märklin C-Gleise R1/R2)	for R1, 36.0 cm and R2, 43.75 cm	3.98 % inner, 3.27 % outer	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, double track, radius 360/437.5 mm, M6 threaded rods with metal connectors (Märklin C-Gleis R1/R2)	for R1, 36.0 cm and R2, 43.75 cm	3.76 % inner, 3.09 % outer	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 437.5 mm, threaded rods with plastic holders (Märklin C-Gleise R2)	for R2, 43.75 cm	3.09 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 437.5 mm, laser-cut plywood supports (Märklin C-Gleise R2)	for R2, 43.75 cm	3.09 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 437.5 mm, laser-cut plywood supports (Märklin C-Gleise R1)	for R2, 43.75 cm	2.36 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, single track, radius 437.5 mm, M6 threaded-rod supports (Märklin C-Gleise R2)	for R2, 43.75 cm	3.27 %	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, double track, radius 437.5/515 mm, M6 threaded-rod supports (Märklin C-Gleise R2/R3)	for R2, 43.75 cm and R3, 51.5 cm	3.27 % inner, 2.78 % outer	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, double track, radius 437.5/515 mm, laser-cut plywood supports (Märklin C-Gleise R2/R3)	for R2, 43.75 cm and R3, 51.5 cm	3.09 % inner, 2.63 % outer	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, double track, radius 515/579.3 mm, M6 threaded-rod supports (Märklin C Gleis R3/R4)	for R3, 51.5 cm and R4, 57.93 cm	2.78 % inner, 2.47 % outer	—	From the maker
Gleiswendel-Profi (HaHoTec Holztechnik) H0 helix, double track, radius 515/579.3 mm, laser-cut plywood supports (Märklin C Gleis R3/R4)	for R3, 51.5 cm and R4, 57.93 cm	2.63 % inner, 2.34 % outer	—	From the maker
Gleiswendelshop (Tobias Fischer) H0 helix, R1, single track (2–8 turns)	for R1, 36.0 cm	4.42 %	—	From the maker
Gleiswendelshop (Tobias Fischer) H0 helix, R1/R2, double track (2–8 turns)	for R1, 36.0 cm and R2, 43.75 cm	4.42 % inner, 3.64 % outer	—	From the maker
Gleiswendelshop (Tobias Fischer) H0 oval helix, R1/R2, double track (2–8 turns)	for R1, 36.0 cm and R2, 43.75 cm	depends on the straights	—	From the maker
Gleiswendelshop (Tobias Fischer) H0 helix, R2, single track (2–8 turns)	for R2, 43.75 cm	3.64 %	—	From the maker
Gleiswendelshop (Tobias Fischer) H0 helix, R2/R3, double track (2–8 turns)	for R2, 43.75 cm and R3, 51.5 cm	3.64 % inner, 3.09 % outer	—	From the maker
Gleiswendelshop (Tobias Fischer) H0 helix, R3, single track (2–8 turns)	for R3, 51.5 cm	3.09 %	—	From the maker
Gleiswendelshop (Tobias Fischer) H0 helix, R3/R4, double track (2–8 turns)	for R3, 51.5 cm and R4, 57.93 cm	3.09 % inner, 2.75 % outer	—	From the maker
NOCH (LAGGIES) LAGGIES helix complete kit H0 R360 mm, single track	for R1, 36.0 cm	3.85 %	—	Search on eBay.de (53001)^Search on eBay.de (53101)^
NOCH (LAGGIES) LAGGIES helix complete kit H0 R360/437.5 mm, single or double track	for R1, 36.0 cm and R2, 43.75 cm	3.85 % inner, 3.16 % outer	—	Search on eBay.de (53004)^Search on eBay.de (53104)^
NOCH (LAGGIES) LAGGIES helix complete kit H0 R515/579.3 mm, single or double track	for R3, 51.5 cm and R4, 57.93 cm	2.69 % inner, 2.39 % outer	—	Search on eBay.de (53009)^Search on eBay.de (53109)^

^* Affiliate link: if you buy through it, Trackplanner earns a commission. The price stays the same for you.

All helix kits →

Turnouts and crossings

Article	Type	Angle
24611	Turnout left	24.3°
24612	Turnout right	24.3°
24711	Turnout left	12.1°
24712	Turnout right	12.1°
24671	Curved turnout left	—
24672	Curved turnout right	—
24771	Curved turnout left	—
24772	Curved turnout right	—
24630	Three-way turnout	24.3°
24649	Crossing	48.6°
24640	Crossing	24.3°
24740	Crossing	12.1°
24620	Double slip	24.3°
24624	Double slip	24.3°
24720	Double slip	12.1°

All pieces

Show all 55 pieces

Article	Type	Dimensions
24064	Straight	64.3 mm
24071	Straight	70.8 mm
24077	Straight	77.5 mm
24977	Straight (end piece)	77.5 mm
24978	Straight (end piece)	77.5 mm
24094	Straight	94.2 mm
24994	Straight	94.2 mm
24995	Straight	94.2 mm
24997	Straight	94.2 mm
74920	Straight	94.2 mm
74924	Straight	94.2 mm
24172	Straight	171.7 mm
24922	Straight	180 mm
24951	Straight	180 mm
20197	Straight	188.3 mm
24088	Straight	188.3 mm
24188	Straight	188.3 mm
24229	Straight	229.3 mm
24236	Straight	236.1 mm
24360	Straight	360 mm
20196	Curve	R 360 mm · 30°
24130	Curve	R 360 mm · 30°
24115	Curve	R 360 mm · 15°
24194	Curve	R 360 mm · 15°
24107	Curve	R 360 mm · 7.5°
24230	Curve	R 437.5 mm · 30°
24224	Curve	R 437.5 mm · 24.3°
24215	Curve	R 437.5 mm · 15°
24294	Curve	R 437.5 mm · 15°
24207	Curve	R 437.5 mm · 7.5°
24206	Curve	R 437.5 mm · 5.7°
24330	Curve	R 515 mm · 30°
24315	Curve	R 515 mm · 15°
24430	Curve	R 579.3 mm · 30°
24530	Curve	R 643.6 mm · 30°
24912	Curve	R 1114.6 mm · 12.1°
24611	Turnout left	24.3°
24612	Turnout right	24.3°
24711	Turnout left	12.1°
24712	Turnout right	12.1°
24671	Curved turnout left	—
24672	Curved turnout right	—
24771	Curved turnout left	—
24772	Curved turnout right	—
24630	Three-way turnout	24.3°
24649	Crossing	48.6°
24640	Crossing	24.3°
24740	Crossing	12.1°
24620	Double slip	24.3°
24624	Double slip	24.3°
24720	Double slip	12.1°
74861	Turntable	—
74862	Turntable	—
7294	Transfer table	—
72941	Transfer table	—

Dimensions in mm, angles in degrees, from the Trackplanner catalogue. Where the data does not give a value unambiguously, the field stays empty.

Track plans with Märklin C

The gallery has 315 public track plans built with Märklin C. These are the ones it recommends right now:

Kleine Stadtbahn

HO · Märklin C · L (32–65 ft²) · 84 track pieces · 11 turnouts · by eliasdecker

Entwurf einer kleinen Spielbahn mit einer Wendeschleife auf 2,5x1,25m

Loop
Single track
Reverse loop
Industry

Open in your browser & edit as a template →

Weihnachten 2026

HO · Märklin C · XL (≥ 65 ft²) · 215 track pieces · 18 turnouts · by eliasdecker

Entwurf für eine einfache Spielbahn mit Wendemöglichkeiten

Loop
Double track
Reverse loop

Open in your browser & edit as a template →

Hobbyzimmer anlageBuilt

HO · Märklin C · L (32–65 ft²) · 169 track pieces · 16 turnouts · by timmaximilian.ehrenfried

Station / module
Double track

Open in your browser & edit as a template →

See all 315 track plans with Märklin C →

Changes

28 October 2026

24720 New

New: slender double slip switch 236.1 mm / 12.1° with electric drive (24720).

25 October 2026

20196 New

New: curved track R1 360 mm / 30° in transparent design (20196).
20197 New

New: straight track 188.3 mm in transparent design (20197).
24315 New

New: curved track R3 515 mm / 15° (24315).
24995 New

New: contact track set 94.2 mm (24995), two tracks per pack.
74862 New

New: turntable 74862, successor to the 74861 with the same dimensions.

21 October 2026

24360 New

New: straight track 360 mm (24360).

14 October 2026

24771 New

New: 24771
24772 New

New: 24772

12 October 2026

24640 Appearance

Turnouts and crossings were missing sleepers, mostly near the joints. The gaps are closed, and the sleepers there are spaced like on the rest of the track.
24671 Appearance

Turnouts and crossings were missing sleepers, mostly near the joints. The gaps are closed, and the sleepers there are spaced like on the rest of the track.
24672 Appearance

Turnouts and crossings were missing sleepers, mostly near the joints. The gaps are closed, and the sleepers there are spaced like on the rest of the track.

10 October 2026

74920 New

New: level crossing 74920 with half gates, road track 94.2 mm (the set's two contact tracks are regular straights).
74924 New

New: Start up level crossing 74924 with half gates, road track 94.2 mm (the set's two contact tracks are regular straights).

8 October 2026

24064 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24071 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24077 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24088 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24094 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24107 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24115 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24130 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24172 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24188 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24194 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24206 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24207 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24215 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24224 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24229 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24230 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24236 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24294 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24330 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.

22 more

24430 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24530 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24611 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24612 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24620 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24624 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24630 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24640 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24649 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24671 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24672 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24711 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24712 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24740 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24912 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24922 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24951 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24977 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24978 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24994 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24997 Appearance

Sleepers and rails brought in line with the prototype: sleepers spaced 0.60 m apart, rails placed so the gap between them is exactly the track gauge. Connectors and track dimensions are unchanged.
24620 New

New: double slip switch 24620 for manual operation, 188.3 mm, 24.3°.

7 October 2026

24624 Type corrected

The turnout has a factory-fitted drive. The parts list no longer adds a separate turnout drive for it; the control panel and decoders still count it. Source
24624 Shape corrected Appearance

The curves of the double slip switch had too small a radius (417 mm) and kinked at two ends. They now have R2 = 437.5 mm as specified by the manufacturer and end exactly at the joints.

5 October 2026

24640 Appearance

Sleeper layout corrected: long turnout and crossing sleepers now reach under the rails of the diverging or crossing track (a sleeper was missing there in places).
24611 Appearance

Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
24612 Appearance

Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
24624 Appearance

Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
24630 Appearance

Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
24640 Appearance

Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
24671 Appearance

Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
24672 Appearance

Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
24711 Appearance

Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
24712 Appearance

Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.
24740 Appearance

Sleeper layout tidied: duplicate sleepers of overlapping routes removed, long turnout timbers, gaps closed.