When it comes to protecting our homes and ensuring the safety of our loved ones, enhancing home security is of paramount importance. One crucial aspect of home security is the type of locks installed on exterior doors. While knob locks have been commonly used in residential properties for decades, many homeowners are now wondering if they can replace their knob locks with deadbolt locks. In this article, we will explore the differences between knob locks and deadbolt locks, and discuss the feasibility of replacing a knob lock with a deadbolt lock.
Understanding the Differences between Knob Locks and Deadbolt Locks
a. Knob Locks:
- Purpose and Functionality: Knob locks are primarily designed to prevent unauthorized access from the outside. They are typically installed on interior doors and offer minimal resistance against forced entry attempts.
- Security Level: Knob locks are considered less secure because they are vulnerable to certain attack methods, such as picking or “credit carding”. They can be compromised easily, making them unsuitable as the sole security measure for exterior doors.
b. Deadbolt Locks:
- Purpose and Functionality: Deadbolt locks provide significantly higher security levels compared to knob locks. Their sturdy construction and bolt mechanism make them more resistant to forced entry attempts. Deadbolts can be operated using a key (single-cylinder deadbolts) or a key on the outside and a thumb turn on the inside (double-cylinder deadbolts).
- Security Level: Deadbolt locks are known for their effectiveness in preventing forced entry. Their solid construction and single-point locking system make them more resistant to picking and other attack methods. Deadbolts are strongly recommended for exterior doors.
Replacing a Knob Lock with a Deadbolt Lock
a. Assessing the Door Requirements:
- Door Thickness: Deadbolt locks are typically designed for doors that are at least 1⅜ to 1¾ inches thick. Check the thickness of your door to ensure compatibility.
- Backset Measurement: The backset is the distance between the edge of the door and the center of the bore hole. Measure the existing knob lock’s backset to find a compatible deadbolt lock.
b. Choosing the Right Deadbolt Lock:
- Single-Cylinder vs. Double-Cylinder: Assess your specific security needs. Single-cylinder locks are most commonly used on residential properties, while double-cylinder locks provide increased security by requiring a key to be used on both sides of the door.
- Grade Levels: Deadbolt locks are graded by the American National Standards Institute (ANSI) based on their quality and durability. Look for Grade 1 deadbolt locks for optimal security.
Installation Considerations:
- Positioning: Ensure that the deadbolt lock is positioned correctly on the door, typically about 6 to 12 inches above the knob lock.
- Compatibility: Check if the existing bore hole and strike plate align with the deadbolt lock’s requirements. If not, you may need to make adjustments or consult a professional locksmith for assistance.
- DIY or Professional Installation: While it is possible to replace a knob lock with a deadbolt lock yourself, it is recommended to hire a professional locksmith to ensure proper installation and maximize security.
Additional Security Measures
Enhancing home security involves more than just upgrading locks. Consider implementing additional security measures to safeguard your home effectively. These may include:
- Security cameras: Install surveillance cameras to deter potential intruders and capture evidence in case of a break-in.
- Door reinforcement: Strengthen doors and door frames with reinforced strike plates and security-grade hinges.
- Security systems: Utilize alarm systems that provide an extra layer of protection and can be integrated with smart home technology for added convenience.
While knob locks may have sufficed in the past, the growing need for enhanced home security calls for the installation of deadbolt locks on exterior doors. Deadbolt locks are known for their superior resistance against forced entry attempts, providing homeowners with peace of mind. By assessing door requirements, selecting the appropriate deadbolt lock, and ensuring proper installation, homeowners can take a significant step toward bolstering their home security. Remember, investing in robust locks is just one aspect of an overall comprehensive home security strategy.