### Comment:
They have an upper hinge and bottom tracks you twat. You can lift and take them off of it.

### REPLY:
You have both an upper and lower track, and the sliding pane is sometimes assisted by 'rollers' or 'hangers.' Sliding doors do not have hinges. That is, not unless you have one of [these suckers](https://youtu.be/QqOlbqcvo_w) 
  
 Source: Used to do procurement for a general contractor

### END.