Great idea for shipping containers. Bi-folding doors open up indoor and outdoor space Interiors and outdoor living spaces are best presented when there is continuity. Bi-folding doors is a great way to add practical value & interior design spark. Indoor Outdoor Living, Outdoor Rooms, Outdoor Kitchens, Outdoor Living Spaces, Patio Interior, Interior Design, Interior Door, Folding Doors, Folding Glass Patio Doors