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 and 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 15x50C 380x7450.0 (74.0)15.0 (381)3.72 (94.5)0.716 (18.2)0.650 (16.5)1.438 (36.5)
C 15x40C 380x6040.0 (60.0)15.0 (381)3.52 (89.4)0.520 (13.2)0.650 (16.5)1.438 (36.5)
C 15x33.9C 380x50.433.9 (50.4)15.0 (381)3.40 (86.4)0.400 (10.2)0.650 (16.5)1.438 (36.5)
C 12x30C 310x4530.0 (45.0)12.0 (305)3.17 (80.5)0.510 (13.0)0.501 (12.7)1.125 (28.6)
C 12x25C 310x3725.0 (37.0)12.0 (305)3.05 (77.5)0.387 (9.83)0.501 (12.7)1.125 (28.6)
C 12x20.7C 310x30.820.7 (30.8)12.0 (305)2.94 (74.7)0.282 (7.16)0.501 (12.7)1.125 (28.6)
C 10x30C 250x4530.0 (45.0)10.0 (254)3.03 (77.0)0.673 (17.1)0.436 (11.1)1.000 (25.4)
C 10x25C 250x3725.0 (37.0)10.0 (254)2.89 (73.4)0.526 (13.4)0.436 (11.1)1.000 (25.4)
C 10x20C 250x3020.0 (30.0)10.0 (254)2.74 (69.6)0.379 (9.63)0.436 (11.1)1.000 (25.4)
C 10x15.3C 250x22.815.3 (22.8)10.0 (254)2.60 (66.0)0.240 (6.10)0.436 (11.1)1.000 (25.4)
C 9x20C 230x3020.0 (30.0)9.00 (229)2.65 (67.3)0.448 (11.4)0.413 (10.5)1.000 (25.4)
C 9x15C 230x2215.0 (22.0)9.00 (229)2.49 (63.2)0.285 (7.24)0.413 (10.5)1.000 (25.4)
C 9x13.4C 230x19.913.4 (19.9)9.00 (229)2.43 (61.7)0.233 (5.92)0.413 (10.5)1.000 (25.4)
C 8x18.75C 200x27.918.75 (27.9)8.00 (203)2.53 (64.3)0.487 (12.4)0.390 (9.91)0.938 (23.8)
C 8x13.75C 200x20.513.75 (20.5)8.00 (203)2.34 (59.4)0.303 (7.70)0.390 (9.91)0.938 (23.8)
C 8x11.5C 200x17.111.5 (17.1)8.00 (203)2.26 (57.4)0.220 (5.59)0.390 (9.91)0.938 (23.8)
C 7x14.75C 180x2214.75 (22.0)7.00 (178)2.30 (58.4)0.419 (10.6)0.366 (9.30)0.875 (22.2)
C 7x12.25C 180x18.212.25 (18.2)7.00 (178)2.19 (55.6)0.314 (7.98)0.366 (9.30)0.875 (22.2)
C 7x9.8C 180x14.69.80 (14.6)7.00 (178)2.09 (53.1)0.210 (5.33)0.366 (9.30)0.875 (22.2)
C 6x13C 150x19.313.0 (19.3)6.00 (152)2.16 (54.9)0.437 (11.1)0.343 (8.71)0.813 (20.6)
C 6x10.5C 150x15.610.5 (15.6)6.00 (152)2.03 (51.6)0.314 (7.98)0.343 (8.71)0.813 (20.6)
C 6x8.2C 150x12.28.20 (12.2)6.00 (152)1.92 (48.8)0.200 (5.08)0.343 (8.71)0.813 (20.6)
C 5x9C 130x139.00 (13.0)5.00 (127)1.89 (48.0)0.325 (8.26)0.320 (8.13)0.750 (19.1)
C 5x6.7C 130x10.46.70 (10.4)5.00 (127)1.75 (44.5)0.190 (4.83)0.320 (8.13)0.750 (19.1)
C 4x7.25C 100x10.87.25 (10.8)4.00 (102)1.72 (43.7)0.321 (8.15)0.296 (7.52)0.750 (19.1)
C 4x6.25C 100x9.36.25 (9.3)4.00 (102)1.65 (41.91)0.247 (6.27)0.272 (6.91)0.750 (19.1)
C 4x5.4C 100x85.40 (8.00)4.00 (102)1.58 (40.1)0.184 (4.67)0.296 (7.52)0.750 (19.1)
C 4x4.5C 100x6.74.50 (6.70)4.00 (102)1.58 (40.1)0.125 (3.18)0.296 (7.52)0.750 (19.1)
C 3x6C 75x8.96.00 (8.90)3.00 (76.2)1.60 (40.6)0.356 (9.04)0.273 (6.93)0.688 (17.5)
C 3x5C 75x7.45.00 (7.40)3.00 (76.2)1.50 (38.1)0.258 (6.55)0.273 (6.93)0.688 (17.5)
C 3x4.1C 75x6.14.10 (6.10)3.00 (76.2)1.41 (35.8)0.170 (4.32)0.273 (6.93)0.688 (17.5)
C 3x3.5C 75x5.23.50 (5.20)3.00 (76.2)1.37 (34.8)0.132 (3.35)0.273 (6.93)0.688 (17.5)