What is the difference between tilt lock and free-float on an ergonomic chair?

Free-float tilt allows the backrest to move dynamically with your body as you shift, keeping the chair responsive to natural movement — ideal during active work. Tilt lock holds the backrest at a fixed angle (typically 90°–115°) so the chair doesn't move when you want to stay in one position — ideal for focused tasks or phone calls. Most ergonomic chairs offer both: you can switch from free-float during meeting prep to locked for a phone call. A chair that only offers tilt lock is less versatile than one that has both modes. FindOfficeFurniture.com has ergonomic chairs with both tilt modes — call 888-719-4960.