Frame constructions have been rigorously tested to simulate the home and transportation environments for improved durability. Corners are glued, blocked and stapled. Seats and back spring rails are cut from 7/8hardwood. Stripes and patterns are match cut. All fabrics are pre-approved for wearability and durability against AHFA standards. Reversible Coil Seating features individually pocketed coils to create uniformed shape and consistent support for durable seating comfort.