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razoraggie wrote:I agree with most of your post there Lucky, but the ONLY reason one should have a double cylinder lock would be if you have glass near the dead bolt of your entry door. You could run 6" high torque deck screws through your jambs and strike plates. But what does that accomplish if the BG simply breaks your glass and turns your deadbolt over.

So, have you ever lived in a house where gaining entry by breaking glass is limited to breaking the glass that allows a burglar to reach the deadbolt?

French doors. Patio doors. Any door with enough glass to crawl through once broken. Windows! Broken glass gives access to most houses, so why would a burglar with a rock limit himself to reaching through a narrow sidelight to open the deadbolt?

Kevin

I answered "no", but I have to elaborate.

My garage is no longer a garage; it's enclosed, and does have a deadbolt on the outside door. The door between garage and kitchen has a barrel bolt, and opens outward, so it wouldn't be easily kicked in. But because it opens out, a burglar who gained access to the garage could get in exactly like I once had to: by using the tools in the garage to drive the pins out of the hinges and remove the door.

As for double-keyed deadbolts: I'm against 'em. Either everyone has to keep a key around their neck at all times, or the key has to be hung right beside the door, which defeats the purpose.

And in most installations, they're useless anyway. They only keep someone out if there's a door with small windows and a very narrow sidelight. I have to laugh when I see them on French doors. When I've asked, people typically say, "If they had a turnbolt, someone could break the window and unlock the door!" As opposed to breaking the window and just walking right through without bothering to unlock, as would be the case with most "big glass" doors.

Kevin