Nominally 4 x 8.
Polycro plastic ground sheets.
Https amzn to 2tpvcph polycryo makes for a great ground sheet.
Specs medium weight 1 6 oz 46 g each size.
Six moon designs polycro footprint large size.
3 62 ounces 103 grams.
Here s a link to the kit.
It s waterproof and surprisingly puncture proof making it an ideal protective barrier for inflatable sleeping pads and ultralight tent floors.
Not bad for an impulse buy at the hardware store.
The two most popular ultralight groundsheets are made using an industrial plastic called polycryo sold by gossamer gear and tyvek.
Another leading contender is a polycro ground sheet.
This is much tougher stuff than normal plastic film such as painter s drop cloths etc.
Since these sheets are made from shrink film they will shrink slightly when exposed to extreme heat.
Window insulation film often referred to as polycro in the backpacking community is a thin clear plastic heat shrink sheeting designed to insulate the windows in your house to save on energy costs but this material also works very well as an ultralight backpacking groundsheet to help protect your tent floor or for use when cowboy camping or under a tarp.
Polycro footprint small size 3 3 out of 5 stars 13.
Poly polycro or polycryo this is it.
So i got bored.
This piece weighs just 1 3 ounces.
Gossamer gear polycryo is ultralight industrial grade plastic sheeting that s used as an ultralight ground cloth or tent footprint by many backpackers.
Approximately 2 50 3 00 each from a larger piece of plastic.
Mine survived the cdt with me and is still my go to ground sheet.
These ground cloths are absolutely clear so you can see if you missed any pebbles or pine cones after you put your ground cloth down.
Shipped as one large duo size 60 x 96 in 152 x 244 cm it can be cut in half to create two 1 2 oz solo sizes or trimmed down to fit a floorless shelter footprint.
Patio door insulation kit contains 2 sheets of 84in x 112in shrink plastic film and 2 rolls of 0 5in x 39ft double sided tape heavy duty and crystal clear for indoor patio doors and large windows.
This polycro ul ground cloth is ultralight ultra effective super inexpensive and more waterproof than silnylon tyvek and most other lightweight waterproof fabrics.
Window wrap plastic insulation makes a great tent footprint substitute.