How do you secure long boards in back of pickup?

[Blori]

Folks - I will be making a bit of a long drive to buy some wood, and I've never really had a great way of securing long boards that hang out past the end of the tailgate on my pickup. I can ratchet them all together, and, if the pile is sufficiently high, pull them down towards the bed somewhat using the lower attachment points in the sides of the bed. But, what I'd really like to do is have some way to actually hold the ends of the boards in towards the cab, if that makes sense.

So I'm wondering how others do this. Tarp, wrapped around the board ends then secured through the grommets? One of those cargo nets, perhaps? But the ones I see online look to have very large openings, so wouldn't contain the boards. Any tips or tricks? I'm going to be coming home with some 10' stuff, so it'll be 2 feet beyond the end of my lowered tailgate.

Thanks