The Dallas City Council has adopted into law security requirements as part of
the Dallas Building Code. These security provisions can help in limiting the
opportunity for crime. Police studies have shown that crime is significantly
reduced when homeowners put these provisions into place. All locks,
including bars and grates, on emergency escape doors and windows must be easy to
open without a key or any special knowledge or effort.
Breakable glass is not allowed within 40 inches of a door- locking
device. See Figure 19.
Required exit doors within 40 inches is acceptable if the glass is
patterned, wired, laminated, obscured or protected by approved bars.
On other than required exit doors, glazing may be within 40 inches of a
key operated lock from both the inside and outside. This is called a double
See Figure 20
The door should be at least 13/8 inches thick and solid core. Any open
space between trimmers and wood doorjambs must be solid shimmed by a piece
extending six (6) inches above and below the strike plate.
The doors must have dead bolts that are easily opened without a key from
The doors must have a minimum throw of one (1) inch through a metal
Strike plates must be attached to locks using a minimum of a two (2) inch
Exposed hinges must be equipped with non-removable hinge pins or
Windows and Sliding Doors
A primary lock and a secondary locking device, as discussed in detail
previously, or approved bars, grills or grates must be on windows that can
be opened and on sliding doors.