hello! first time poster here. i am looking for advice in the construction of a suspended triangle shaped platform, made priciply of a web of seatbelts under a layer of ripstop, all sown together. using trees or rocks to anchor the corners of the triangle. (this type of tent has been done on a smaller scale sucsessfully under the name "tenstile", using rathcets to tighten the line) is there any way to model the slack and potential stretch of the material? or even just to see at what weigh the web will start to sag. my thoughts are that with a six inch ratchet and 6 in seatbelt material line the structure will be taunt enough to hold three full adults. i have uploaded a pic for visual referance of the webb pattern, the triangle is 26 feet on each side.