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Metal bases for PVC walls

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Working on building metal bases for 3/4 PVC walls.  Basically going to be a cross of 1.25 inch x 1/8 inch steel strip with a piece of rebar for the vertical to fit into the PVC. The inside diameter of schedule 40 3/4 PVC is 0.824in.  I don’t know if I should get #5 or #6 rebar.  The nominal diameters of the rebar are 5/8 and 3/4 but I don’t know and can’t seem to find the actual outside measurements of the rebar.  Does anyone know the actual outside dimensions or have any experience with this?

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I’m not sure where you are looking but at the prices I have seen the round bar is 4.5 times more expensive than equivalent nominal diameter rebar.  For 60 feet it’s $100 vs $450.  I’m going to use the cheapest viable option.

Edited by Keydet08
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