Are you saying you have floor rot on the slide or inside the trailer? If it is rotting on the slide floor, likely just removing furniture, and fixtures on the inside will allow access to the floor.
If it is the floor inside the trailer, then yes, the slide will likely have to be moved to its furthermost position with additional support on the outside in order to get to all of the floor. For this Ii would consult professional service.
Bob
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