Hey Guys, I'm doing a pretty big job over at Aus Fish.com its rebuilding a 5.5 meter boat but the trailer i bought with it needs to be towed to the tip, just wondering what are my options of using U steel beam (not perlins) instead of the 100x50mm shs that its built from now? would 80x40x4mm U channel be a replacement? the old steel trailer looks to be 2-3mm material, the shop also sells 100x45x4.5mm U beam
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