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c channel standard sizes,channel steel sizes

C channel standard sizes

Date:2026-01-27View:24Tags:c channel standard sizes,channel steel sizes
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C channels are manufactured in a wide range of sizes to meet different structural, framing, and fabrication requirements.


Standard C channel sizes in millimeters typically feature:

Width: 34 mm to 80 mm

Depth (Height): 76 mm to 305 mm

Thickness: 3 mm to 10 mm

 

These steel C channels are commonly supplied in standard lengths ranging from 1.22 m to 6.1 m, allowing flexibility for both on-site installation and prefabrication.

 

For precise dimensional data, including width, depth, thickness, and weight, please refer to the C channel size chart. The chart provides accurate C channel dimensions in mm, helping engineers, fabricators, and contractors select the correct steel channel based on load requirements and application conditions.

 

C channels are widely used in structural framing, support systems, equipment frames, and general steel fabrication, where dimensional accuracy and consistency are critical.

 C channel

General Properties

Designation

Dimensions

Dimensions for Detailing

Designation

Weight G (kg/m)

h (mm)

b (mm)

tw (mm)

tf (mm)

r1 (mm)

r2 (mm)

Area A (×10^2 mm²)

d (mm)

u (mm)

C 50×25×5×6

3.95

50

25

5

6

6

3

4.94

25.3

12.5

C 75×40×5×7

6.95

75

40

5

7

8

4

8.68

42.7

20

C 100×50×5×7.5

9.37

100

50

5

7.5

8

4

11.71

65.3

25

C 125×65×6×8

13.4

125

65

6

8

8

4

16.75

87.5

32.5

C 150×75×6.5×10

18.62

150

75

6.5

10

10

5

23.27

103.7

37.5

C 150×75×9×12.5

24.01

150

75

9

12.5

2

1

30.02

121

125

C 180×75×7×10.5

21.52

180

75

7

10.5

2

1

26.9

155

159

C 200×80×7.5×11

24.77

200

80

7.5

11

2

1

30.97

174

178

C 200×90×8×13.5

30.53

200

90

8

13.5

2

1

38.16

169

173

C 230×80×8×12

28.56

230

80

8

12

2

1

35.7

202

206

C 250×90×9×13

34.86

250

90

9

13

2

1

43.58

220

224

C 250×90×11×14.5

40.34

250

90

11

14.5

2

1

50.43

217

221

C 300×90×9×12

37.17

300

90

9

12

2

1

46.46

272

276

C 300×90×10×15.5

43.85

300

90

10

15.5

2

1

54.82

265

269

C 300×90×12×16

48.78

300

90

12

16

2

1

60.98

264

268

C 380×100×10.5×16

54.85

380

100

10.5

16

2

1

68.56

344

348

C 380×100×13×16.5

62.5

380

100

13

16.5

2

1

78.13

343

347

C 380×100×13×20

67.37

380

100

13

20

2

1

84.22

336

340

 

FAQ

FAQ 1: What are standard C channel sizes in mm?
Standard C channel sizes typically range from 34–80 mm in width, 76–305 mm in depth, and 3–10 mm in thickness.

 

FAQ 2: Are C channel dimensions measured in millimeters or inches?
C channel dimensions are commonly specified in millimeters for international projects, though inch-based sizes are also used in some standards.

 

FAQ 3: What lengths are C channels usually supplied in?
C channels are generally supplied in standard lengths between 1.22 m and 6.1 m.

 

FAQ 4: Where are C channel sizes in mm commonly used?
C channel sizes in mm are widely used in structural steelwork, framing systems, supports, and fabrication projects.

 

FAQ 5: How do I choose the right C channel size?
C channel size selection depends on load requirements, span, installation conditions, and applicable structural standards.

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