What Deadbolt is Best for Your Business?

Most business owners know the importance of securing all entrances to their place of work, but do you also know what types of locks are best for securing your building?

When looking at deadbolts, here are a couple of things to make sure and consider: (courtesy of



Double or Single Cylinder?

Deadbolts come in both double and single cylinder models. A double cylinder deadbolt requires a key to operate the deadbolt from either side of the door. A single cylinder deadbolt can be locked or unlocked from inside by a thumb turn.

Conventional security wisdom has dictated that double cylinder deadbolts be used on doors with windows. This eliminates the danger of someone breaking the glass and reaching inside to unlock your door. However, there are a few reasons to re-think this approach and use a single cylinder deadbolt in most applications.

The first reason is a concern for life safety. A double cylinder deadbolt may prevent you from exiting quickly in case of emergency. You don’t want to be fumbling for a key when your building is burning. Some manufacturers do make a “captive thumb turn” key – basically a removable thumb turn that transforms the lock from a single to a double cylinder. But the fact that the thumb-turn can be removed means that it may not be handy when you need it.

The second reason to reconsider this policy is the strength of modern windows. Back when single-pane glass was the norm, the single cylinder deadbolt was a bigger risk. The glass on most newer doors is nowhere near as flimsy.

Want to learn more about deadbolts? Come in and talk to us or give us a call (515.276.7030)


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