Please tell me how serious this rust is?!
Seriously, I think this is very scary! Underneath, on the belly, It's a square of rusted metal. Starts about a foot in from the edge. Underneath from about where the original heater is located, across to the steps, back towards the wheels, about 5 ft square. It's RUST, and on the street side, it's actually dropped down about 3 inches. You can see plywood in the photo.
Can someone offer suggestions for repair? How serious?
The original subfloor is in good shape, except right at the front where the window leaked. Otherwise, cannot see damage from top. Of course if you open the cabinet doors under sink, you can see through to the ground.
I'm a little concerned...
Life Is A Journey - Enjoy the Ride!