Thank you SO much for everyone's help! I thought I would give everyone a follow-up. I got the screens made and hung with very few problems. When I drilled the holes through the wood trim, I did hit air space twice and then something very, very solid. I know, that seems odd, but after drilling six of those holes, I can tell you it was wood, air, wood, air, extra-hard, solid wood. Anyway, the shades are light and I have overkill in the hooks and eye-screws.