>>2563189I’d pass on a 9x9 square.
Square tarps are usually hung as a diamond, which is less than ideal. 9x9 gives you 12.7’ as a diamond, which leaves 1.5’ of coverage over an 11’ hammock hung at 30°. So I mean sure, it technically fits.
The problem is wind and minimal rain cover. The sides are much more exposed to wind, and rain on an angle could more easily reach the hammock near the head and foot.
It could be hung asymmetrically, but it really depends on the tie out location. That will mitigate the risk from rain, but not really solve the wind problem.
There’s also the fact that it’s got flat 9’ edges. It takes some practice to get them perfectly pitched, whereas catenary cuts are much more forgiving.
I’m pretty sure someone (maybe Dutchware, possibly Warbonnet) was making tarps specifically with an asymmetric design. It was more similar to a hex tarp rather than a square or rectangle hung as a diamond. Dutchware definitely has asyms that are like diamonds with cat cut edges.
I don’t think they ever really caught on, and hex cat cut seems to be the most common. It makes sense; it’s the easiest to pitch, offers more reasonable coverage, and can easily be made with doors.