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Old 04-29-2015, 03:43 PM   #1
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rowdyATX's Avatar
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1961 28' Ambassador
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Correct width for C Channel

I am having to replace the C Channel for my '59 22' Flying Cloud.

In Austin, I have found a metal shop that will supply what I need. They are asking for the following information:

Width? I'll go with Kip's advice and get 1.5" but I do have a question. The leg that is placed into the C Channel is 1 1/8". Is there any reason to go with 1.25 instead of 1.5"?

Can someone explain what the inboard legs and outboard legs are? I am assuming these are the pieces of channel that run down the walls and into the C Channel, but I can't figure out outboard vs. inboard, as it relates to C channel.

Leg length? I am assuming the leg length is the lengths of C Channel I need but I'm unclear.

Thickness? 0.50 or 0.63Thank you Kip for providing the width (and all of the other information you gave me!)

Structural? Not sure what this is referring to.

Architecture? Not sure what this is referring to.

Thanks for any advice you can share!
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Old 04-29-2015, 04:57 PM   #2
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Sounds like they are going to sell you extruded aluminum channel.
If you are doing any of the curves with this it will be very hard to bend.
You may want to find a shop that will custom make the channel for you.
For width picture the letter "C" the back vertical part of the C will be the width,
the 2 parts of the C that are horizontal are the legs. This is what you will measure for leg length.
Hope this helps more than it hurts.

Architectural channel has square inside and out side corners.
Structural channel will have square outside corners and a radius on the inside corners. Harder to bend. I
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