This picture shows front support on my Fleetwood during the repairs.
The lower 1x4 board and steel corners are my reinforcement and the picture shows following repairs when the wings sag.
I did the 1st repair after my water tank start showing outside.
Camper has "aluminium construction" but no aluminium on the wall in picture. Turn out first years of introducing aluminium to TC industry was just a skeleton, where most of corners still depend on wood for integrity.
Click For Full-Size Image.