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MC12 Channel Sizes

The MC12 series runs 7 sizes, from MC12x50 at 50 lb/ft to MC12x10.6 at 10.6 lb/ft. They share a nominal depth, so the sizes in it differ mainly in web thickness and in how far the flange reaches.

MC12 sizes, heaviest first

Size	lb/ft	d (in)	bf (in)	A (in²)	Ix (in⁴)	Sx (in³)	Zx (in³)
MC12x50	50	12	4.14	14.7	269	44.9	56.5
MC12x45	45	12	4.01	13.2	251	41.9	52
MC12x40	40	12	3.89	11.8	234	39	47.7
MC12x35	35	12	3.77	10.3	216	36	43.2
MC12x31	31	12	3.67	9.12	202	33.7	39.7
MC12x14.3	14.3	12	2.12	4.18	76.1	12.7	15.9
MC12x10.6	10.6	12	1.5	3.1	55.3	9.22	11.6

Relevant tools

Steel Shape Properties Table
search and compare across every series
Beam Shear, Moment and Deflection Diagram Calculator
check a span made up of one of these sizes
All Shape Series
every published series, W-shapes through round HSS

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