Short answer: Not all deadbolts offer the same protection. Here's what to look for when upgrading your door hardware.
Not all deadbolts offer the same protection. Here's what to look for when upgrading your door hardware.
Deadbolts are rated by ANSI/BHMA into Grade 1, 2, and 3, with Grade 1 being the most durable and secure. For exterior doors, choosing at least a Grade 2, and ideally Grade 1, deadbolt provides meaningful resistance to force. The grade reflects tested cycles and strength, not just marketing.
A single-cylinder deadbolt uses a thumbturn inside and a key outside, allowing quick exit in an emergency. A double-cylinder version needs a key on both sides, which can deter someone from reaching through broken glass but may hinder escape. Consider your door style, glass proximity, and local fire codes before choosing.
The strongest deadbolt still fails if it only anchors into a thin frame. Pair it with a reinforced strike plate and long screws that reach the stud behind the jamb. Proper installation and full bolt extension are as important as the lock you buy.
Deadbolts are rated by ANSI/BHMA into Grade 1, 2, and 3, with Grade 1 being the most durable and secure. For exterior doors, choosing at least a Grade 2, and ideally Grade 1, deadbolt provides meaningful resistance to force. The grade reflects tested cycles and strength, not just marketing.
A single-cylinder deadbolt uses a thumbturn inside and a key outside, allowing quick exit in an emergency. A double-cylinder version needs a key on both sides, which can deter someone from reaching through broken glass but may hinder escape. Consider your door style, glass proximity, and local fire codes before choosing.
The strongest deadbolt still fails if it only anchors into a thin frame. Pair it with a reinforced strike plate and long screws that reach the stud behind the jamb. Proper installation and full bolt extension are as important as the lock you buy.
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