What is the difference between tilt lock and tilt tension on an office chair?

Tilt tension controls how hard you have to push back against the backrest to recline — a knob under the seat increases or decreases the spring resistance so the chair reclines more or less easily. Tilt lock holds the backrest at a fixed angle (typically 90°–115°) so the chair doesn't move when locked. Tension should be adjusted for your body weight — heavier users need more tension to prevent unintended recline; lighter users need less. Locking is a separate function from tension control and is used during focused tasks where a stable backrest is preferred. FindOfficeFurniture.com has office chairs with both tilt lock and tension adjustment — call 888-719-4960.