Connecting 2 short c channels to make a long one

How would I connect 2 c channels to make one long one? Our team is low on supplies so it isn’t possible to just buy a longer one, what piece should I use to connect them? and should I use pop rivets or screws?

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I would like to not use channel couplers since we don’t have them, I’d rather use something else.

U-channels are effective at connecting c channels. You could also use lock bars I guess


okay, I’ll use lock bars

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Here is one way to do it, which will work if you are using the channels as a brace or something:

However, if this is for something else, you might be better off with something like this:


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