sliding glass door sticking

Hi, Gayle. To start out, I should tell you that the information given here doesn't tell me anything about your door or the hardware it uses. That's in reference to the glass itself, not the door. Unfortunately, there isn't any sticker, code, stamp, or marking that will tell you what hardware your door uses. The only way we can do that is to see pictures of the hardware in question.

Which brings me to the next issue, which is that I don't know what the source of your problem is. You say that your door is sticking, but that could be caused by a lot of different things. Your best bet now would be to carefully compare the condition of your track and see if you can find any dents or dings that may be hanging up its operation.

If your track is dinged up, then that may very well be the problem. Using a track cover like our 80-102 would be a good solution. The video below will go into more detail.

I do see the dips, yes. It's up to you if you want to try out a track cover or replace the track entirely with something like our 80-106. Those dips look pretty deep. The track cover may be sufficient enough to cover them but there's always a chance that they're deeper than I can make out in this photo. 

I don't know what roller you'll need without seeing it out of the door. That's the only way to identify a match.

We have a video that details the step by step process of removing a glass door roller like yours. If you needed help IDing it, then show us a picture of the top, side, and rear after you have it removed. Dimensions will also be a huge help.

There are dozens of different rollers. You can see our selection of single wheel rollers here and our selection of double wheels rollers here. At this point, you could have anything. I won't know until I see them.