>>117209Build a simple A-frame, longer and wider than you think you need, and the point that's six inches wider than your shoulders should be above your head's height. Lash your door's header there.
Lash poles, running from the ground to the roofline, every foot or so, and every third in such a way that it supports the roof.
Lash horizontal braces, much lighter than the long poles, to support your roof's covering.
If you choose to use a tarp, put it on before any other covering, but you'll need to make small holes in appropriate places for lashings.
Choose your cover: If leaves, you want six inches at the absolute smallest depth (they'll pile much more thickly at the base, of course). Or you may consider thatching. Reed mats need to be overlapped to shed water, but thick bundles are waterproof, and insulate well.
Another layer of thin poles horizontal across the roofing is lashed in place to hold it securely.
At the end opposite the door, you need to improvise your stove or fire place, and a method of venting the smoke. Clay is not going to catch fire, so I suggest using it copiously.
For a door, a thick waterproof cloth that you can secure with ties is a splendid idea. It's more replaceable than a wood door, and lashings are easier to maintain or replace than zippers.
