I started tonight... I pulled the old pink shag up on my '79 sovereign
and 4"-5"directly in front of the door is soft. The rest of the subfloor is solid and passed the awl test. The rest of the floor is CLEARLY 33 years old but solid other than some creaks when I walk on it (300 pounder so it may be my knees that are creaking!) The soft spot does not extend more than an inch on either side of the door frame and is actually wet from snow melt over the past week or so. From the looks of things I think I can remove the lower door frame, cut out the soft area and patch with a new piece of 3/4" plywood. Treat the whole area of the patch with epoxy, lay a new 1/4" subfloor overlay and then lay a laminate floor to the rear bath then tile or similar.
Does anyone have experience with this and/or can advise on the do-ability of my plan?
Remove door frame base
Remove soft/wet area (5"x30")
Replace with new 3/4" plywood
Sheet entire old floor with 1/4" plywood
(Possible epoxy coat new material)
Lay new laminate floor / tile floor
Enjoy the trailer like it is meant to be used.