Here's where I'm at so far...
So back around Thanksgiving I got bit by the teardrop bug through a conversation with my brother. I found the tnttt website shortly after that and have spent all my free time studying how best to build a trailer.
I decided that I really wanted a 5x8 instead of the traditional 4x8. I decided on this mainly because I want to put a small bunk above the main sleeping area so I can take one of my kids camping. About the only planning I really did was to build a little cardboard model before beginning my build.
I spent some time looking for a used trailer that I could use for a base but nothing was in the price range I was looking for. So I did the inevitable and got a heavy duty Harbor Freight trailer.
I purchased the trailer the day after Christmas and started to build the trailer. I’ll let the pictures speak for themselves.
Here are the trailer boxes fresh from Harbor Freight.
Here is the trailer mostly assembled.
The base framed is put together.
So I decided to use the thin foil-backed bubble insulation instead of foam or Styrofoam. It has the same R value as ¾ inch RMAX (5.1). Plus it is super easy to work with.
Here is a view of the bottom after the floor was installed. I decided to use 7/16 OSB for the floor. It is stapled, screwed, and glued down. In retrospect, I think it would have been better to use actual plywood instead of OSB. I did screw up when cutting the second piece of the floor, forgetting that it was supposed to be 5’ wide instead of 4’. That is why the bottom vertical bracing is different than the other vertical bracing.
I used the Rustoleum Spray on bed liner to coat the exposed bottom. It seems to do a good job.
I got the side profile cut and sanded so both sides are identical. I am using ¾ maple plywood from the depot of home.