Platinum Suite Architectural Drywall Partitioning Suites - Platinum 120 Criterion Industries Type Stud and Plaster Glazing Type Offset, Centre, Double Glazed Plaster Thickness 13 Stud Thickness 90 Panel Thickness 10 Platinum 120, the largest of the Platinum suites provides extra cavity space, structural columns and plumbing with three glazing options. Criterion Industries