Trailer Cross Bars replacement

Hey all,
My Shoreline painted steel trailer for my 18SX is rusting like crazy (used to be a lake boat, now at ocean in NJ) and rear cross bar with roller collapsed on one side at the end of last season.

I have decided to replace both cross bars to be safe (front has cradles). It's a 2" painted steel bar currently and I was thinking I'd replace with a 2" galvanized bar. Anyone see any issues with that or have other recommendation? Also wondering if anyone knows the gauge of steel you need to support the boat?
Thanks all!
Phil

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'89 18SX

2” square steel tube with 1/8” wall (give or take) should do the trick. Depends on what’s available.

sm

Check your frame, too. I had a Shoreline trailer and the frame broke! Not impressed with their quality.

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Yet another Bob!
"Firefly" - 2012 Hobie Getaway with wings and spinnaker
"Icebirds" - 1974 Skeeter iceboat
Too many canoes and kayaks