Stupid Tarp Question

[WalksOn2Wheels]

So I had enough material to make a hex tarp for hammock camping, but then I decided to try making a UL asym tarp. It just feels wrong and I want to make a 9x7 or 9x6 tarp for both hammock and bivy camping. But with the material I have left, this would require the sewn portion of the tarp to be perpendicular to the ridgeline in an A frame pitch.

TL;DR: Is it ok if the seam is not the ridgeline?

[Endless Trails]

For the best pitch you'll want a catenary curve along the ridgeline, you could skip the catenary curve and have the sewn portion perpendicular to the ridge line which will give you some sag in the middle of the tarp and potentially some weird stretch and loading of the fabric due to the stitch line. For hammock camping I presume you will be fairly sheltered in a forest so high winds shouldn't be a real problem so you'll probably be ok. You could always make the tarp to see how you like it and if it becomes an issue you could get some more fabric and make a new one later on.

[WalksOn2Wheels]

Thanks for your input. You are correct that a catenary curve on the ridgeline would be best for an A frame pitch. I was shooting for a square/rectangular tarp for multiple pitch options. Digging into google images provided the idea of sewing two smaller strips on the long edge of 9 feet of 58 inch wide material. this leaves the ridgeline open without a seam in the lengthwise A frame pitch. I can do this with the material I have, so I'll probably go this route.

[BCSteel]

I use a 9X7 silnylon tarp diagonally so the seam is also diagonal to the ridge line over my hammock with no problems yet.

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[Snowbd2u]

If you decide to go for just a Bivy option.... I have mine down to just under 5 feet by 7.5 feet. Plenty of room if using a Bivy such as a sol escape or similar.