When shopping for a couch, buyers should avoid frames made from unreinforced particle board, pressboard, or staples-only joinery, as these materials easily crack and loosen under stress. Additionally, steer clear of low-density polyurethane foam cushions that lose their resilience quickly, un-zippered cushions that cannot be re-stuffed, and delicate specialty fabrics that lack high rub-counts or protective treatments if you have children or pets.