ALUMINUM ASSOCIATION STANDARD CHANNEL SIZES TABLE


Aluminum Association Standard C Channel Sizes, Dimensions and Section Properties Table.

Aluminum Association Standard C Channel Sizes
Aluminum Association Standard C Channels Sizes and Dimensions
Depth Width Weight
per Foot
Area Flange
Thickness
Web
Thickness
Fillet
Radius
Axis X-X Axis Y-Y
S r I S r x
in in lb. in2 in in in in4 in3 in in4 in3 in in
2.00 1.00 0.577 0.491 0.13 0.13 0.10 0.288 0.288 0.766 0.045 0.064 0.303 0.298
2.00 1.25 1.071 0.911 0.26 0.17 0.15 0.546 0.546 0.774 0.139 0.178 0.391 0.471
3.00 1.50 1.135 0.965 0.20 0.13 0.25 1.41 0.94 1.21 0.22 0.22 0.47 0.49
3.00 1.75 1.597 1.358 0.26 0.17 0.25 1.97 1.31 1.20 0.42 0.37 0.55 0.62
4.00 2.00 1.738 1.478 0.23 0.15 0.25 3.91 1.95 1.63 0.60 0.45 0.64 0.65
4.00 2.25 2.331 1.982 0.29 0.19 0.25 5.21 2.60 1.62 1.02 0.69 0.72 0.78
5.00 2.25 2.212 1.881 0.26 0.15 0.30 7.88 3.15 2.05 0.98 0.64 0.72 0.73
5.00 2.75 3.089 2.627 0.32 0.19 0.30 11.14 4.45 2.06 2.05 1.14 0.88 0.95
6.00 2.50 2.834 2.410 0.29 0.17 0.30 14.35 4.78 2.44 1.53 0.90 0.80 0.79
6.00 3.25 4.030 3.427 0.35 0.21 0.30 21.04 7.01 2.48 3.76 1.76 1.05 1.12
7.00 2.75 3.205 2.725 0.29 0.17 0.30 22.09 6.31 2.85 2.10 1.10 0.88 0.84
7.00 3.50 4.715 4.009 0.38 0.21 0.30 33.79 9.65 2.90 5.13 2.23 1.13 1.20
8.00 3.00 4.147 3.526 0.35 0.19 0.30 37.40 9.35 3.26 3.25 1.57 0.96 0.93
8.00 3.75 5.789 4.923 0.41 0.25 0.35 52.69 13.17 3.27 7.13 2.82 1.20 1.22
9.00 3.25 4.983 4.237 0.35 0.23 0.35 54.41 12.09 3.58 4.40 1.89 1.02 0.93
9.00 4.00 6.970 5.927 0.44 0.29 0.35 78.31 17.40 3.63 9.61 3.49 1.27 1.25
10.00 3.50 6.136 5.218 0.41 0.25 0.35 83.22 16.64 3.99 6.33 2.56 1.10 1.02
10.00 4.25 8.360 7.109 0.50 0.31 0.40 116.15 23.23 4.04 13.02 4.47 1.35 1.34
12.00 4.00 8.274 7.036 0.47 0.29 0.40 159.76 26.63 4.77 11.03 3.86 1.25 1.14
12.00 5.00 11.822 10.053 0.62 0.35 0.45 239.69 39.95 4.88 25.74 7.60 1.60 1.61


Supplements:

Link Usage
Aluminum C Channel Sizes Calculator Calculator form of the aluminum C channel sizes chart.

Definitions:

Second Moment of Area: The capacity of a cross-section to resist bending.

Radius of Gyration (Area): The distance from an axis at which the area of a body may be assumed to be concentrated and the second moment area of this configuration equal to the second moment area of the actual body about the same axis.

Section Modulus: The moment of inertia of the area of the cross section of a structural member divided by the distance from the center of gravity to the farthest point of the section; a measure of the flexural strength of the beam.

Reference:

  • Oberg, E. , Jones ,F.D. , Horton H.L. , Ryffel H.H., (2016) . Machinery's Handbook . 30th edition.  Industrial Press Inc. pp 2619