A Guide to Hornby and Peco Model Railway Track Sizes
When building or expanding your model railway, understanding the various track sizes and codes from Hornby and Peco is crucial. This guide will help you easily identify the right track pieces for your layout, ensuring a seamless and accurate build.
Hornby
The R code is located on the other side of the track, simply use this document to find the dimensions of the piece. The R code is hard to spot, we recommend placing the track up against a light or using your phone torch.
For additional support the Track image with corresponding code is in the image below.
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Peco
Just like Hornby the track code is located on the other side of the track, simply scroll below for code dimensions and comparisons. Remember at Hobbyco we place the P in front of ST-
The code is hard to spot, we recommend placing the track up against a light or using a flashlight.
Straight Track
| Section Name |
Length (mm) |
Length (Inches) |
Peco | Hornby | Bachmann |
| Standard Straight | 170 | 6.75 | ST-200 | R600 | 36-600 |
| Double Straight | 330 | 13 | ST-201 | R601 | 36-601 |
| Long Straight | 670 | 26 | ST-204 | R603 | 36-603 |
| Short Straight | 40 | 1.5 | ST-203 | R610 | 36-610 |
Curved Track
| Section Name |
Radius (mm) |
Radius (Inches) |
Recommended width to fit (mm / inches) |
Number to make a circle |
Peco | Hornby | Bachmann |
| 1st Radius Standard Curve | 371 | 15 | 780 / 31 | 16 | ST-220 | R604 | |
| 1st Radius Double Curve | 371 | 15 | 780 / 31 | 8 | ST-221 | R605 | |
| 2nd Radius Standard Curve | 438 | 18 | 940 / 37 | 16 | ST-225 | R606 | 36-606 |
| 2nd Radius Double Curve | 438 | 18 | 940 / 37 | 8 | ST-226 | R607 | 36-607 |
| 2nd Radius Half Curve | 438 | 18 | 940 / 37 | 32 | ST-227 | R643 | 36-643 |
| 3rd Radius Standard Curve | 505 | 21 | 1080 / 43 | 16 | ST-230 | R608 | 36-608 |
| 3rd Radius Double Curve | 505 | 21 | 1080 / 43 | 8 | ST-231 | R609 | 36-609 |
| 4th Radius Standard Curve | 572 | 24 | 1240 / 49 | 16 | ST-235 | R8261 | |
| 4th Radius Double Curve | 572 | 24 | 1240 / 49 | 8 | R8262 |
Points
|
Section Name  |
Length (mm) |
Length (Inches) |
Radius (mm) |
Radius (Inches) |
Peco Setrack | Hornby | Bachmann |
| Left Hand Standard | 170 | 6.75 | 440 | 17.375 | ST-241 | R8072 | 36-872 |
| Right Hand Standard | 170 | 6.75 | 440 | 17.375 | ST-240 | R8073 | 36-873 |
| Left Hand Curved | - | - | 440 | 17.375 | ST-245 | R8074 | 36-874 |
| Right Hand Curved | - | - | 440 | 17.375 | ST-244 | R8075 | 36-875 |
| Left Hand Large | 245 | 9.5 | 850 | 33.5 | R8077 | 36-877 | |
| Right Hand Large | 245 | 9.5 | 850 | 33.5 | R8078 | 36-878 | |
| Y-Point | 170 | 6.75 | 850 | 33.5 | ST-247 | R8076 | 36-876 |
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Hornby Track
R600 Straight
Extend your model railway layout with this Hornby Straight Track piece, measuring in at 168mm in length. Ideal for those long-time railway collectors of those just starting out building their layout.
R610 Quarter Straight
The Quarter Straight track piece has a length of 38mm, a black painted finish and is the ideal option if you are looking to add that little bit extra yet subtle length to your railway layout.
R601 Double Straight
The Hornby double straight track has a length of 335mm, a black painted finish and is the perfect choice for those just beginning their railway layout.
R603 Long Straight
The Hornby long straight track has a length of 670mm, a black painted finish and is the perfect choice for those just beginning their railway layout.
R604 Curve - 1st Radius
Extend your model railway layout with this official Hornby 1st radius (371mm) standard curve arc, covering an angle of 22.5°. Why not use this track as part of a festive winter scene, circling around the Christmas tree?
R607
Double Curve - 2nd Radius
This track has a radius of 438mm, arc of 45° and a length of 380mm.
R606
Curve - 2nd Radius
Extend your model railway layout with this official Hornby second radius (438mm) standard curve arc, covering an angle of 22.5°.
R605 - Double Curve- 1st Radius
Extend your model railway layout with this official Hornby 1st Radius (371mm) double curve arc, covering an angle of 45°. Why not use this track as part of a festive winter scene, circling around the Christmas tree?
R643 - Half Curve- 2nd Radius
This Half Curve - 2nd Radius track measures at 111mm in length, has a Radius of 438mm and an arc of 11.25°.
R606 - Curve 2nd -radius
Extend your model railway layout with this official Hornby second radius (438mm) standard curve arc, covering an angle of 22.5°. Why not use this track as part of a festive winter scene, circling around the Christmas tree?
R608 Curve - 3rd Radius
The Curve - 3rd Radius track is a fantastic addition to your railway scene, especially if it involves a small town or even around a specific building. This track has a radius of 505mm and arc of 22.5°.
R609 Double Curve - 3rd Radius
The Double Curve - 3rd Radius track has a radius of 505mm, arc of 45° and measures at 405mm in length.
R8261 Curve 4th Radius
This 4th Radius arc 22.5° track has a length of 235mm and a black painted finish to complete your railway scenery.
R8262 - Double Curve 4th Radius
This double curve 4th Radius 572mm arc 45° track has a length of 450mm and a black painted finish to complete your railway scenery.
R628 - Half curve (33’’) Large Radius
If you are seeking to expand your railway track or add depth to your layout then look no further! This 4th Radius arc 22.5° track has a length of 235mm and a black painted finish to complete your railway scenery.
Conclusion
Understanding the dimensions and codes for Hornby and Peco tracks is key to creating a precise and functional model railway layout. Whether you’re a seasoned collector or a beginner, this guide serves as a handy reference to help you expand your railway network with ease.
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