I'm changing some door handles on our solid wood internal doors and need new tubular latches.
Unfortunately the hole drilled in the door is non standard and I measure the back set distance (from spindle hole to edge of lock) at 102mm or 4". I have tried to find a tubular lock to fit this spec but all I can find is a back set of either 82 or 108mm.
Any advice on sourcing a tubular latches (are there such things as adjustable back sets) or is it new doors??