How do I know if an office chair has the right seat depth for me?

Correct seat depth leaves 2–4 inches of space between the front edge of the seat and the back of your knees when you're sitting fully against the backrest. Most chairs measure 16–19 inches; taller users need 19–21, shorter users do better with 15–17. A seat that's too deep forces shorter users to sit forward without back support, or puts the seat edge behind their knees. Many ergonomic chairs include a seat slider for adjustable depth to accommodate different users. FindOfficeFurniture.com includes seat depth dimensions on every chair listing — call 888-719-4960.