The S30 Folding Door system is our most versatile and economical folding door series. This system can act as an adaptable partition, barrier wall or divider for areas where thermal values are less important but a good seal is still required. The panels neatly fold away, allowing for a connected unified space in the indoors or out. The S30 Folding Door has been expertly designed to transform your outdoors into a complete outdoor living space.