Trunking sizes and part number
This table shows a range of popular sizes - other sizes available.
Size Width by Depth
Part Number
Standard Length
50mm x 50mm
TR 22
3 metre
75mm x 50mm
TR 32
3 metre
75mm x 75mm
TR 33
3 metre
100mm x 50mm
TR 42
3 metre
100mm x 75mm
TR 43
3 metre
100mm x 100mm
TR 44
3 metre
150mm x 50mm
TR 62
3 metre
150mm x 75mm
TR 63
3 metre
150mm x 100mm
TR 64
3 metre
150mm x 150mm
TR 66
3 metre
225mm x 50mm
TR 92
3 metre
225mm x 75mm
TR 93
3 metre
225mm x 100mm
TR 94
3 metre
225mm x 150mm
TR 96
3 metre
225mm x 225mm
TR 99
2 metre
300mm x 50mm
TR 122
3 metre
300mm x 75mm
TR 123
3 metre
300mm x 100mm
TR 124
3 metre
300mm x 150mm
TR 126
3 metre
300mm x 225mm
TR 129
2 metre
300mm x 300mm
TR 1212
2 metre