I recently posted a similar question, but the design has changed, so here's the new question.
I have two 4-ft x 4" x 4" wood posts, and each post has two screw eyes. There's 12 feet of distance between each post. I would like to recreate the design in the image, but I want it to be tight, not sagging. I'd use a 3/4" rope with no stretch.
How can I tighten this rope so that it's taut? Once it's tight, I'd Like to use a knot to secure it (I'd rather use a knot than a crimp sleeve).
Since this more decorative, I can pull and then tighten, but I prefer using something that can make it even tighter.