Hi Ron, I think you might be thinking of another trailer. What you mention about the aluminum frame inside walls does sound familiar, I have seen it somewhere. The Escape structure is just a moulded fiberglass shell, reinforced with the walls and cabinets inside.
2017 Escape 5.0 TA
2015 Ford F150 Lariat 3.5L EcoBoost
2009 Escape 19 (previous)
“Most folks are about as happy as they make up their minds to be.” — Abraham Lincoln