Yes barricading is coming, they are working on it, I don't know why since zombies can still walk through doors and walls and whatever they want, they can still hit you from outside too. So you will be able to barricade yourself in and get beat to death by a zombie outside while you are trying to get out to kill him. Alot of work is needed before door locks should be a priority, get the basics first.

Hello TasmanskyCert,

Yes, locking doors will be an option in the future according to the following status report from the devs: http://forums.dayzgame.com/index.php?/topic/212177-status-report-week-of-29-sept-14/

Regards,
JStewart