Lightest queen size bed frame from things found at Lowe's/Home Depot?
I'm looking to build the lightest 1 foot tall queen size bed frame from things only found at Lowe's/Home Depot. No Wood, its too heavy!!! Can you think of anything sold at Lowe's/Home Depot that would produce the lightest queen size frame that would still hold 2 average adults for sleeping? I want it super light, because I would be tipping it on it's side to free up the floor space. Like a murphy bed that is free standing and uses no metal hardware to lift the frame, no cabinet.
I'm open to all materials except wood. Would thick XPS insulation foam sheets be light enough to set a queen size mattress on? How about the 12" diameter cardboard tubes used as concrete forms, cut down to a foot(yielding 4 tubes), then covered in thin plywood?
My only requirements for the queen bed frame is super lightness for tipping on it's side and sold at Lowe's/Home Depot. If I did use wood, would 1x2's in a matrix be light? I know there are engineers that could help me out on here! Please help!!!