Would this work for a tarp.

I am not sure how it would work or not but i was thinking of using a 10' x 10' tarp setup up on diagonal and using two grizz beaks to close off the ends. I don't have either products i am just looking for suggestions or comment to see if this setup would work or not. Would the grizz beaks cover the ends off? the the length would have lots of coverage.

Sure will. That's what I started with & used for about 2 years without an issue. Even in a few severe T-Storms.

It will work but for me, the diagonal gave me less coverage than using it as a square
(10' ridgeline).