More Carpet Removal

I only had a small window of time to work today so I decided to pull more of the lovely carpet out from the drivers side. I should have started by replacing my knife blades because that would have made the job a tad easier. I need to PB Blaster or WD 40 those seat belt bolts because I could not budge them. 

I looked at the bathroom floor and am curious if the silver I see is the outside skin. If so that means the subfloor is only a thin 1/4” or 1/2” plywood piece. That’s kind of scary.