Can the floor be completely replaced?
Yes, it can be either a frame-off replacement, or an in-place replacement. The frame off is exactly that, you remove the belly skins and then unbolt the upper skin assembly from the floor and then raise it up and pull the floor and frame from under it, replace the plywood floor, and then lower the skin back down, much the way Airstream built the trailer. There are examples of frame off restorations in the Links section. The alternative is to replace the floor from the inside in sections, removing a partial piece of plywood and replacing it a similar sized piece using the techniques covered above. You can see what the removed floor on 1952-1968 trailers looks like in this picture. 1969 and later trailers have and advantage – they are designed so that you can remove the front and rear lower banana wrap and see the edge of the plywood. The plywood can be loosened from the inside and then slid out the back, and a replacement piece slid back in. You still have take the pressure off the floo
