They come in at 71 inches long. They fit in the back of my SUV, with the seats forward a little and I was able to get the back door shut.
You will want to sand it with 120 grit sanding disc prior to painting or staining. I did it before I painted and polyurethaned it. I would fill any bad wood areas or knots with wood filler and then sand. I also rounded all the edges, to make it safer. You will be pleased with the results.
I used a Waterguard clear sealer the next day.
Pressure treated legs only - standard
Comfortably 6 probably
2 adults and 2-4 kids or 4 adults
I'm not sure, because delivery prices vary by location. I purchased mine in the store and brought it home the same day. You are making a great purchase.
Yes. Ours are outside.