If you have the time, it would probably be better to sand it, yeah. Ideally I would've given mine better treatment, but that was a LOT of wood surface to sand... Even with a power sander it would've taken me a very long time, and I was already pressed for time. So I'll have to hope it holds up.Sounds like it's working out just fine for you!
I've done a bit of reading, and sanding with 80 grit sandpaper might also do the trick.. so I'm going to try that (with appropriate PPE, ugh PT!). Nothing to lose but a little more time!
The run uses 2x4's and 4x4's. The blue siding on the coop is OSB. I used Behr waterproofing stain on both, the difference is that I used the solid color (blue) on the coop, and the semi-transparent stain on the run, because I was going for the natural look there - wanted the grain in the wood, and a dark stain to look more like tree bark. I didn't pre-treat anything before staining, and everything seems to be holding up fine so far (5 months).
