Are there different lengths of deadbolts?
In the United States, there are two common backsets for residential door locks: 2 3/8 inches and 2 3/4 inches. Pack your locks with a 2-3/8-inch or 2-3/4-inch latch, depending on which backset you specify.
What is the maximum height of a deadbolt lock in a door?
48 inches
Door handles, pulls, latches, locks and other operating devices shall be installed 34 inches (864 mm) minimum and 48 inches (1219 mm) maximum above the finished floor. Locks used only for security purposes and not used for normal operation are permitted at any height.
Are deadbolt locks standard size?
The standard size of a deadbolt fits into backsets measuring 2 3/8 to 2 3/4 inches. The location of the deadbolt is typically 6 to 12 inches above the key lock. Most deadbolts require a cross bore of 2 1/8 inches in diameter and a 1-inch latch bore.
What is deadbolt throw length?
The “throw” of a deadbolt is the length that it extends out of the door edge when engaged. A longer throw makes it more difficult for burglars to gain entry by spreading the doorframe. Most locksmiths recommend a minimum throw of one inch.
Can a deadbolt door be kicked in?
Most criminals who want to get inside your home won’t take the time to carefully pick a deadbolt lock—they’ll break the glass and reach in or just kick the door in. The fact of the matter is that if someone really wants to get in, they will try very hard to do so.
What is a deadbolt backset?
‘Backset’ is the distance from the front of the lock to the centre of the spindle as shown here. If you intend to use new locks or latches on an old door, replacing your old ones, you will need to make sure the new one fits into the hole in the door. To do this, measure the ‘backset’ distance of your old lock.
Are all deadlocks the same size?
Whilst not all locks follow the same template, nine times out of ten, other measurements can be correctly assumed based on the case depth. There are many different case depths but the most common sizes are 64mm and 76mm.
What is the difference between a Grade 1 and Grade 2 deadbolt?
Grade 1 requires a key in knob must hold up to 300 lb-in and a lever lock must withstand 450 lb-in. Grade 2 requires a key in knob, must hold up to 150 lb-in and a lever must hold up to 225 lb-in. Grade 3 requires a key-in-knob to withstand at least 120 lb-in and a lever lock must withstand at least 180 lb-in.
Can you extend a door latch?
If the misalignment is only ⅛ inch or less, then try to enlarge the hole. After removing the strike plate from the door frame, use a metal file to enlarge the strike plate hole. A half-round file will match the curvature of the latch hole, making it the best choice for widening the strike plate hole.
Can burglars pick a deadbolt?
A skilled burglar does not need to break any windows or force any doors in order to get inside your house—he can do so simply by picking the lock. While lock picks are illegal to possess unless you are a licensed locksmith , many burglars have contraband sets that they use to commit crimes and steal valuable items.
What is the most common backset?
2 3/8″
Standard backsets are either a 2 3/8″ backset, or 2 3/4″ backset. The most common backset is 2 3/8″ but 2 3/4″ is also quite common – usually used on exterior doors. Sometimes it’s easier to measure from the edge of the door to the highest point on the bore hole.