Burl, I'll have a better idea once we've camped over the next several days. Everything is trial and error now. For starters, I put a rolled up 4x6 thin outdoor rug; a covered 5 gal bucket containing fresh water hoses, filter, towel, and related stuff; outdoor extension cord, camp shovel, CATV cable, dog tie out, exterior entry mat. It's not using much of the space. I recall reading the mod about using the upper area from the interior. At this moment, I can see doing something like that but not going full depth from the interior side. That would leave some area that is still 48" tall. For instance, we have a 10x10 foot screen room which packs 48x8x8. So I'd not want to lose the entire 48" space. But I'm never going to need all of it.