Walls should be constructed to resist vandalism and facilitate ease of maintenance. Exterior and interior walls within inmate housing and activity areas shall be constructed as follows:
(1) Exterior walls: (A) a minimum 8 inch concrete block vertically reinforced by #3 bars 8 inches on center and all cells filled with 2,500 psi grout; or(B) a minimum of 4 inch thick concrete plank reinforced with #4 bars 8 inches on center each way; or(C) a minimum 3/16 inch thick steel plate.(2) Interior walls: (A) a minimum 6 inch concrete block vertically reinforced by #3 bars 8 inches on center and all cells filled with 2,500 psi grout; or(B) a minimum 4 inch thick concrete plank reinforced with #4 bars 8 inches on center each way; or(C) a minimum 3/16 inch thick steel plate. Innovative design concepts are encouraged and comparable materials and methods approved by the Commission may be utilized for exterior and interior wall construction.37 Tex. Admin. Code § 259.746
The provisions of this §259.746 adopted to be effective April 4, 1999, 24 TexReg 2355