Plans for the radius arms are 1.75x.120 main tube and 10 gauge plating...maybe...the other option is "stacked" (2) 1.75x .120 tubes with 10 gauge plating. Both options will have 10 gauge overlays in appropriate areas. Radius arm brackets will be ¼"Yeh no worries. should be good, then you can add plate to as far out on the beam as possible and box in your rad arm beam mount for extra strength on the beam end. What size tubing and rad arm boxing plans?
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