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Footprint smaller than inner or outer tent?
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Home › Forums › Gear Forums › Make Your Own Gear › Footprint smaller than inner or outer tent?
- This topic has 7 replies, 6 voices, and was last updated 5 years, 12 months ago by jscott.
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Apr 15, 2018 at 2:57 pm #3530514
I want to make a footprint for my tent, in order to keep the floor clean. People say the footprint should be cut smaller than the tent, but does this mean smaller than the sewn in groundsheet of the inner tent, or smaller than the ground area within the flysheet? I don’t want water getting between the sewn in groundsheet and the footprint. I live in the UK where the weather can be wet and changeable. My tent is an outer pitch first Zephyros 1.
Apr 15, 2018 at 3:40 pm #3530523Yes, smaller than the inner’s footprint.
Apr 16, 2018 at 8:50 am #3530661Thank you. Not really sure why, though?
Apr 16, 2018 at 9:51 am #3530663Because if it just smaller than the fly it may still collect rain from splashes or wind blown rain.
It then gets sandwiched between the waterproof groundsheet and the tent floor, so that it can penetrate the floor with the full body weight on top.
Apr 17, 2018 at 2:22 am #3530829How much smaller tho?
Is there a guide or general rule or do we just play it by ear?
Apr 17, 2018 at 2:49 am #3530832Given that both Tyvek and PolyCryo shrink in the heat (when washed for the former) and most others accumulate wrinkles anyway, I would start with the exact size of the floor. In other words I would opt for something that with use becomes just a little smaller than the floor.
Apr 22, 2018 at 11:21 pm #3531795I have always used polycryo or more recently tyvek groundsheets cut to the size of the inner tent. Over time do to wrinkles and shrinkage they probably end up being slightly smaller than the inner tent, but since it is just an inch or two around the edge and most of the time you aren’t putting much weight right at the edge of your inner tent its not an issue. You could probably make it larger than your inner tent as long as it was still far enough away from the edge of the fly that it would not get rain on it, but I don’t see any advantage to doing this unless you wanted to have a floor on your vestibule, but even then I think you would probably be better off just using a second piece of tyvek cut to shape for that.
Apr 23, 2018 at 12:25 am #3531803And yes a polycryo ground sheet cut just smaller than the inner tent is really, really worth it. Also, clear polycryo allows you to see any prickles that might puncture your pad or make you uncomfortable.
I haven’t tried tyvek.
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