Hi Becky,
Welcome to the forum...
So you want to live in a trailer over the summer... Can I suggest the largest teardrop you can build... Include a table and stove in there... in case of bad weather.
RSBP wrote: but before I start, will the HF 4x8 be a good size for this sort of design?
You might want to consider the red trailer in a 5x8 size...
RSBP wrote:Also, I noticed a variety of skins on these teardrops - from wood to aluminum or paint. I'm considering either an oil-based exterior paint or aluminum flashing adhered with pop rivets...a lotta work, but a nice look and waterproof right? Any advice or suggestions on coverings that will last and not leak?
The easiest way to skin a teardrop, and keep it watertight, and hide a bunch of imperfections, is paint. Dale is painting one right now... that's a good thread to follow.
RSBP wrote:Speaking of leaks...

what is the best way to waterproof the BOTTOM of the teardrop to keep road water and crud from seeping through the floorboards? Paint? Fiberglass? Asphalt sealer? Should I use pressure treated plywood on the floor too?
I agree with the other comments, stay away from pressure treated wood, and use that cheap roofing sealer on the bottom...
RSBP wrote:One more question! I have good woodworking skills and a month off to work on this. How long will it take (hours) to build just the shell? I can work on the inside as I go along... Thanks!!
I've built several teardrops, and I can tell you that building that in a month is an awfully aggressive schedule. It can be done, but you gotta be good, you gotta be fast, and you got to have stanima. I would suggest you allow a little more time than that...
Mike...
The quality is remembered long after the price is forgotten, so build your teardrop with the best materials...