What ergonomic chair specs matter most for large-frame or big-and-tall users?

Big-and-tall ergonomic chairs are specifically rated for users 6'2"+ and/or 300–500 lbs, with wider seats (typically 22–25"), deeper seat pans, taller backrests (to support the full lumbar and thoracic spine), and reinforced cylinders and bases. A standard 250 lb capacity chair under a 280 lb user will show premature wear within a year and may fail dangerously. Look for models explicitly rated at 350 lb or 500 lb with BIFMA heavy-duty certification. FindOfficeFurniture.com has a wide selection of big-and-tall ergonomic chairs — call 888-719-4960 for the best deals.