Sliding Patio Door Missing Mortise Lock

Hello there!

It's tough to say what hardware you need without seeing the original as a reference but we'll try our best. Just keep in mind, this is an educated guess and we can't guarantee that these items are what you have. 

I think our 82-218 mortise lock may be a better match for the cut out in your door, which is round. Our 82-218 has a round face while the 82-223 has a square face. For the handle set, take a look at our 82-030 with 3-15/16" hole center spacing. Look over our dimensions and compare them to the space in your door to see if these match what you need. 

The 82-218 is meant to be a very snug fit into the mortise; at first glance it can appear to be the incorrect replacement when in actuality it needs to be inserted at an angle to get into the door properly. The video below illustrates the installation process. So long as the installation holes above and below that rounded mortise in the door are 3-11/16" apart, center-to-center, the 82-218 is likely your best bet, though without seeing the original mechanism we of course can't be 100% confident. Let us know if you have further questions.   

If your door has the same design as shown above, then the 82-218 is what you want. I know it looks too big at first, but as long as you install it at an angle (as shown in the video above) then it will fit.

I'm sorry to say that we don't sell replacement panes or sashes of any kind. We only sell replacement hardware like locks, balances, latches, etc. If all you need to do is replace the glass, then I suggest contacting a local glass shop for assistance.