Front Door Lock Standards

There are 3 basic grades of locks starting with grade 1 which rates locks at 800 000 locking cycles grade two at 400 000 cycles and grade 3 at 200 000 cycles.
Front door lock standards. Door locks knobs and handles. It s a reflection of the durability of the internal door lock types not the amount of security they provide. When you see packaging bearing ansi grade 3 or 2 or 1 those numbers on door locks and deadbolts are a collaboration between ansi and the builders hardware manufacturers association. When boring deadbolt locks in a door there are two standards for spacing between the bottom lock and the deadbolt.
The american national standards institute ansi assigns grades to locks that reflect how well you can expect them to perform over time. Locks that are grade 1 offer the highest level of strength and security. Look for british standard number bs3621 stamped on the lock from the above photo this is a 2007 version bs3621 2007. Grade 1 is the highest quality lock that you can buy.
Type of front door lock back door lock a key operated multi point lock system is fitted into the body of the door and locks into the door frame. When it comes to choosing door hardware the most important consideration should be security. The grades range from 3 to 1 with 3 reflecting basic security and 1 reflecting top level security. Grade 1 top ansi lock grade.
You need to make sure that the diameter of your old cylinder is consistent with the high security cylinder you are replacing it with. If the product does not fit properly it is less likely to function properly. To get the best front door locks you need to make sure that your measurements are always right. Quick steps on how to check.
When the lock is engaged multiple bolts will engage into the door frame usually with a minimum of 3 points and sometimes 4 or 5 points. Find the right lock for your exterior and interior doors here. Look for british standard kitemark engraved on the lock. There are other combinations of spacing which are used on specialty locks however.
The institute is a private non profit that helps create standards for many products. Some exterior door locks are designed to automatically lock when the door closes. Browse our selection of premium secure door locks entry door knobs and modern hardware from schlage.