Exact Steel Measurements

DanStew

Well-Known Member
Joined
Jul 6, 2007
Location
Lexington/Columbia South Carolina
Hey Guys. What is the exact size for 4 inch C channel. Is it really 4 inches or say 3 3/4. Same with 2x4 steel? I need to know what the sizes are for a project i am doing at work.

thanks
 
In my experience, 2X4 is 2X4 and 4" channel is 4" the channel part could vary a bit. Both of these are outside measurements, inside can vary depending on thickness and manufacturer.
It's not like Lumber where a 2X4 is 1 1/2" X 3 1/2" and so on
 
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