All SSTT rim tracks have pre-punched tabs located at 12″, 16″, or 24″ on-center configurations. SSTT rim tracks are available in 16′ or 32′ lengths. All CEMCO SSTT Rim-Tracks are designed to be used with structural load-bearing SSCJ SureSpan floor joists or CEMCO C-Studs/joists that are produced from hot-dipped galvanized steel in standard CP60 coating weight. CP90 is available upon special request.