Hello guys, we have attached a new wall paneling and want to install a new headboard on the back bedroom wall and need to know the measurements where the steel studs and Window frame is, our Barth doesn’t have a rear window, We would hate to remove the paneling to find the metal frame, help please..

Lowes or Home Depot sells a stud finder that detects metal or wood studs for around $20.00 .
That might do the trick .