I'll take a stab. Each linear foot of 4' wide .032" T3 2024 is about 1.84 lbs/ linear foot. So if your trailer uses say 140 linear feet outside and the same area inside that's 280 ln ft and your at 515 lbs. I don't know if your trailer is made from that material or in fact if it uses that area either but that's my 60 second calculation/ guess.
1960 Sovereign 33 Pacific Railroad Custom
Looking for a stove grate ring for 1960 Princess stove