I'm just getting in from a screw up. A referral company sent me half hour drive to repair an alarmed exit lock. Well, the old one is broken beyond repair. So, company sends me a new one. The new Arm-A-Dor says it's for a 48 inch wide door. I get there, and the door is 39 1/2 inch. I can't install a 48 inch lock on a 39 1/2 inch door. I called the referral company back.
The suggest it might be possible to cut the lock down. And to check the web page.
Pass the word. Arm A Dor makes you print your own install manual.