2.5' x 7'
My sheet of washed and edge-seamed Tyvek with strategic…
Source: I scavanged it at a construction site with help from a sympathetic worker.
My sheet of washed and edge-seamed Tyvek with strategic grommets and center flaps acts as ground cloth, rain fly, tarp, bivy, pack cover or poncho. I don't leave home without it.
- Replaces other gear
- Cheap (free at construction sites)
- Very lightweight
- Creates jealous campers
Cut sheet to size of required footprint plus a foot or two on door side if under a tent. Place grommets where poles and stakes would go. Cut and seam openings for head and arms. Tape (Tyvek tape) flaps over head and arm slits. Seam all edges with Tyvek Tape. (Tyvek Tape is lighter than, say, Gorilla Tape, and equally strong.) Wash in large machine at commercial laundry with soap and softener to eliminate crinkle sound.
Will it to your grandchildren.
Still using original design 12 years later. Very weather proof. Ventilates as poncho. Packs small. Always works. You can't buy it already made. Velcro at flaps are optional.