Mortise lock question

When I had this problem, after a lock began to jam and needed to be replaced, I just used the new striker plate that came with the new lock, which meant chiselling out a bit more of the door frame to take the slightly different placement of the "pockets" for the handle and lock bolts.

I never know whether "mortise" should be spelled "mortice" in the UK.

Double door rebate conversion kit, or similar

Thanks folks - makes sense that it'd be called "rebate set" with the benefit of hindsight!

As for the spelling of mortice/mortise, again with the benefit of hindsight, I prefer mortice!!

I looked it up. There seems to be no clear afavouritre,. I spell it mortice.

"I before E when surrounding a C"....

In the past faced with similar issues I have found it simpler to "modify" the existing striker plate with a Dremel so that the new lock clears.

Most locks I have had have the bit the lock fits into when closed and they are never it seems the same as the existing one. So you either unscrew the old one and put on the new and chisel away the door to fit, or you go bonkers and modify the old plate. As for any handles and the key hole I'm surprised these are not all different too, most of the locks in this house on internal doors are around

Yes and when it does not fit you are mortise-fied? Brian

The alternative approach is to take some bits out of the new lock and use that to repair the old one. It obviously depends on what's wrong with the old one and how much ERA have changed the design internally over the years.