Some office chairs accept replacement arm kits.
Mounting points must match the chair frame.
Quick answer
Check the manual and underside mounting holes.
Do not drill structural parts without manufacturer approval.
Inspect the chair
Look for factory mounting points first.
- Check beneath the seat pan.
- Measure hole spacing.
- Identify threaded inserts.
Find compatible arms
Visual similarity does not guarantee fit.
- Use the exact chair model.
- Compare bolt size and spacing.
- Check left and right orientation.
Install safely
Support the chair before removing hardware.
- Use manufacturer-specified fasteners.
- Tighten evenly.
- Avoid overtightening plastic mounts.
Set the arm height
Arms should not lift the shoulders.
- Keep shoulders relaxed.
- Allow the chair near the desk.
- Remove arms if they block positioning.
Frequently Asked Questions
Can universal arms fit every chair?
No. Mounting patterns vary.
Are armrests always ergonomic?
No. Poor height can interfere.