Tex. Transportation Code § 394.042: FACE RESTRICTIONS.

(a) The face area of an on-premise sign may not be larger than 400 square feet, including a cutout but excluding an upright, trim, or apron.

(b) The face area of an off-premise sign may not be larger than 672 square feet, excluding a cutout, upright, trim, or apron.

(c) The cutout area of an off-premise or on-premise sign may not be larger than 20 percent of the sign's surface copy area.

(d) This section does not apply to:

(1) a sign that advertises the sale or lease of property on which the sign is located; or

(2) an on-premise wall sign.

Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.