Our last SOB trailer had a galvanised steel frame which held up extremely well - even to being washed with winter road salt.
Unfortunately the rest of the trailer didn't hold up as well! We eventually got rid of it due to high cost of repairing damage to the flooring and laminated sidewalls due to recurring water leaks - but the frame looked just like new!
I wish our AS had been designed with a composite floor, a galvanised frame - and no enclosed belly pan!
Brian & Connie Mitchell
2005 Classic 30'
Hensley Arrow / Centramatics
2008 GMC Sierra SLT 2500HD,4x4,Crew Cab, Diesel, Leer cap.