Bench assembled Engineered wood frame assembly reinforced with corner blocking and kiln dried solid wood spring rails for warping prevention. Cushions High-density polyurethane foam core containing no flame retardants or harmful chemicals encapsulated with multi layer fiber sheeting for lofted seating comfort. Seating is a one fabric sided, non-reversible construction. Slight softening and flattening of the cushion will occur as a result of normal use and aging but are inherent characteristics in the make up of the product. Legs Rubber wood Suspension High gauge Sinuous Spring seat platform suspension (when applicable) balanced by a synthetic webbed back construction for a resilient and well balanced sit.