C Shapes - American standard channels
Welcome to our C shapes free CAD downloads page! Here you'll find all American Standard Channel shapes described by the AISC Steel shapes database (V14.1). Sort the table below according to any property and select a CAD file to download using the reference links in the left-most column.
You can also purchase all our CAD data in one easy download, containing the shapes as individual files or AutoCAD Design Center files - just click here to visit our Shop.
| Imperial Reference | Metric Reference | Nominal Weight | Depth of Section | Width of Section | Web Thickness | Flange Thickness | K Dimension |
|---|---|---|---|---|---|---|---|
| (Click on link to download) | lb/ft (kg/m) | d in (mm) | b in (mm) | tw in (mm) | tf in (mm) | k in (mm) | |
| C 15x50 | C 380x74 | 50.0 (74.0) | 15.0 (381) | 3.72 (94.5) | 0.716 (18.2) | 0.650 (16.5) | 1.438 (36.5) |
| C 15x40 | C 380x60 | 40.0 (60.0) | 15.0 (381) | 3.52 (89.4) | 0.520 (13.2) | 0.650 (16.5) | 1.438 (36.5) |
| C 15x33.9 | C 380x50.4 | 33.9 (50.4) | 15.0 (381) | 3.40 (86.4) | 0.400 (10.2) | 0.650 (16.5) | 1.438 (36.5) |
| C 12x30 | C 310x45 | 30.0 (45.0) | 12.0 (305) | 3.17 (80.5) | 0.510 (13.0) | 0.501 (12.7) | 1.125 (28.6) |
| C 12x25 | C 310x37 | 25.0 (37.0) | 12.0 (305) | 3.05 (77.5) | 0.387 (9.83) | 0.501 (12.7) | 1.125 (28.6) |
| C 12x20.7 | C 310x30.8 | 20.7 (30.8) | 12.0 (305) | 2.94 (74.7) | 0.282 (7.16) | 0.501 (12.7) | 1.125 (28.6) |
| C 10x30 | C 250x45 | 30.0 (45.0) | 10.0 (254) | 3.03 (77.0) | 0.673 (17.1) | 0.436 (11.1) | 1.000 (25.4) |
| C 10x25 | C 250x37 | 25.0 (37.0) | 10.0 (254) | 2.89 (73.4) | 0.526 (13.4) | 0.436 (11.1) | 1.000 (25.4) |
| C 10x20 | C 250x30 | 20.0 (30.0) | 10.0 (254) | 2.74 (69.6) | 0.379 (9.63) | 0.436 (11.1) | 1.000 (25.4) |
| C 10x15.3 | C 250x22.8 | 15.3 (22.8) | 10.0 (254) | 2.60 (66.0) | 0.240 (6.10) | 0.436 (11.1) | 1.000 (25.4) |
| C 9x20 | C 230x30 | 20.0 (30.0) | 9.00 (229) | 2.65 (67.3) | 0.448 (11.4) | 0.413 (10.5) | 1.000 (25.4) |
| C 9x15 | C 230x22 | 15.0 (22.0) | 9.00 (229) | 2.49 (63.2) | 0.285 (7.24) | 0.413 (10.5) | 1.000 (25.4) |
| C 9x13.4 | C 230x19.9 | 13.4 (19.9) | 9.00 (229) | 2.43 (61.7) | 0.233 (5.92) | 0.413 (10.5) | 1.000 (25.4) |
| C 8x18.75 | C 200x27.9 | 18.75 (27.9) | 8.00 (203) | 2.53 (64.3) | 0.487 (12.4) | 0.390 (9.91) | 0.938 (23.8) |
| C 8x13.75 | C 200x20.5 | 13.75 (20.5) | 8.00 (203) | 2.34 (59.4) | 0.303 (7.70) | 0.390 (9.91) | 0.938 (23.8) |
| C 8x11.5 | C 200x17.1 | 11.5 (17.1) | 8.00 (203) | 2.26 (57.4) | 0.220 (5.59) | 0.390 (9.91) | 0.938 (23.8) |
| C 7x14.75 | C 180x22 | 14.75 (22.0) | 7.00 (178) | 2.30 (58.4) | 0.419 (10.6) | 0.366 (9.30) | 0.875 (22.2) |
| C 7x12.25 | C 180x18.2 | 12.25 (18.2) | 7.00 (178) | 2.19 (55.6) | 0.314 (7.98) | 0.366 (9.30) | 0.875 (22.2) |
| C 7x9.8 | C 180x14.6 | 9.80 (14.6) | 7.00 (178) | 2.09 (53.1) | 0.210 (5.33) | 0.366 (9.30) | 0.875 (22.2) |
| C 6x13 | C 150x19.3 | 13.0 (19.3) | 6.00 (152) | 2.16 (54.9) | 0.437 (11.1) | 0.343 (8.71) | 0.813 (20.6) |
| C 6x10.5 | C 150x15.6 | 10.5 (15.6) | 6.00 (152) | 2.03 (51.6) | 0.314 (7.98) | 0.343 (8.71) | 0.813 (20.6) |
| C 6x8.2 | C 150x12.2 | 8.20 (12.2) | 6.00 (152) | 1.92 (48.8) | 0.200 (5.08) | 0.343 (8.71) | 0.813 (20.6) |
| C 5x9 | C 130x13 | 9.00 (13.0) | 5.00 (127) | 1.89 (48.0) | 0.325 (8.26) | 0.320 (8.13) | 0.750 (19.1) |
| C 5x6.7 | C 130x10.4 | 6.70 (10.4) | 5.00 (127) | 1.75 (44.5) | 0.190 (4.83) | 0.320 (8.13) | 0.750 (19.1) |
| C 4x7.25 | C 100x10.8 | 7.25 (10.8) | 4.00 (102) | 1.72 (43.7) | 0.321 (8.15) | 0.296 (7.52) | 0.750 (19.1) |
| C 4x6.25 | C 100x9.3 | 6.25 (9.3) | 4.00 (102) | 1.65 (41.91) | 0.247 (6.27) | 0.272 (6.91) | 0.750 (19.1) |
| C 4x5.4 | C 100x8 | 5.40 (8.00) | 4.00 (102) | 1.58 (40.1) | 0.184 (4.67) | 0.296 (7.52) | 0.750 (19.1) |
| C 4x4.5 | C 100x6.7 | 4.50 (6.70) | 4.00 (102) | 1.58 (40.1) | 0.125 (3.18) | 0.296 (7.52) | 0.750 (19.1) |
| C 3x6 | C 75x8.9 | 6.00 (8.90) | 3.00 (76.2) | 1.60 (40.6) | 0.356 (9.04) | 0.273 (6.93) | 0.688 (17.5) |
| C 3x5 | C 75x7.4 | 5.00 (7.40) | 3.00 (76.2) | 1.50 (38.1) | 0.258 (6.55) | 0.273 (6.93) | 0.688 (17.5) |
| C 3x4.1 | C 75x6.1 | 4.10 (6.10) | 3.00 (76.2) | 1.41 (35.8) | 0.170 (4.32) | 0.273 (6.93) | 0.688 (17.5) |
| C 3x3.5 | C 75x5.2 | 3.50 (5.20) | 3.00 (76.2) | 1.37 (34.8) | 0.132 (3.35) | 0.273 (6.93) | 0.688 (17.5) |