High Pressure Top on 3/5" Hihg Density Particle Board Core, with Backer Sheet. 1" dia., 18 gauge steel pedestal legs on rectangular tables. 1 1/78" , 14ga. steel wishbone legs on round tables. 1 5/8", one piece steel apron. Mar proof plastic Foot Caps & edge molding. Automatic Lock-Open Mechanism. Standard 29" high. Adjustable tables are 22"-32" in 1" increments