sliding metal stairs to the attic in the ceiling, open flap and unfolded stairs, modern look. view from the top of the stairs dow

access apartment architecture attic batten beams boards building ceiling cleft comfortable construction contemporary design door doorway empty exit flap floor folding garret high home house inside interior ladder light loft look metal modern molded new nobody open osb plank retractable roof single slats sliding stair staircase stairs stairway step top unfolded upholstered view wall white wood wooden