My teardrop, that's under construction, will be 5' 3" wide by 4' 6" high and 11' 2" long (body length). At its tallest inside there will be 4' from the floor to the ceiling. My trailer frame is 60" wide by 117" long. The sandwich floor is 62 1/2" wide by 122 1/4" long. The walls will cover the trailer frame. The profile is inspired by Andrew's Grumman II plans.
Most of my reason for building a larger than customary teardrop is because I'm 6' 4" tall. Early on I decided to make room for a queen sized bed inside the cabin. The galley will have about 30" of under counter depth for a cooler on a slide out drawer.
The sides are sandwich construction with 1/4" plywood on the outside, with 3/4" interior framing and foam insulation in the middle, and 1/8" interior plywood. The outside walls, roof and galley lid are all getting covered with fiberglass cloth and epoxy from Raka.com. Not with aluminum.
I chose fiberglass, instead of aluminum, for multiple reasons. Most importantly it allowed me to much more easily build a teardrop larger than 4' x 8'. It costs considerably less and is much lighter than aluminum. I expect it will be very watertight because epoxy waterproofs the underlying plywood skins and eliminates the need for any trim on the edges with lots of screws penetrating into the underlying wood frame. Finally, I'll paint the teardrop a color of my choosing.
It's my first time working with fiberglass. Well almost my first because I tried to make a boogie board as a kid. The teardrop fiberglassing is coming along very well.
Steve Fredericks' Building A Wooden Teardrop CD has been very helpful and well worth fifty bucks.
HTH
