HEIGHT, STRIKE PLATE, AND THROW REQUIREMENTS--KEYED DEAD BOLT OR KEYLESS BOLTING DEVICE.
Tex. PROP Code § 92.154.
in effect(a) A keyed dead bolt or a keyless bolting device required by this subchapter must be installed at a height:
(1) not lower than 36 inches from the floor; and
(2) not higher than:
(A) 54 inches from the floor, if installed before September 1, 1993; or
(B) 48 inches from the floor, if installed on or after September 1, 1993.
(b) A keyed dead bolt or a keyless bolting device described in Section 92.151 (6)(A) or (B) in a dwelling must:
(1) have a strike plate screwed into the portion of the doorjamb surface that faces the edge of the door when the door is closed; or
(2) be installed in a door with a metal doorjamb that serves as the strike plate.
(c) A keyed dead bolt or keyless dead bolt, as described by Section 92.151 (6)(A), installed in a dwelling on or after September 1, 1993, must have a bolt with a throw of not less than one inch.
(d) The requirements of this section do not apply to a keyed dead bolt or a keyless bolting device in one door of a pair of French doors that is installed in accordance with the requirements of Section 92.153 (b)(1) or (2).
Amended by Acts 1993, 73rd Leg., ch. 357, Sec. 3, eff. Sept. 1, 1993.