5230 DimenThe IC Intersectional Chair or is designed for use at the intersection of two crossing lengths of post tensioning cables rebar to correctly position and firmly hold the two bars in place. The large support base gives added benefit when used on vapor barriers or soft fill. The chair fits 1/2″ PT cable or up to #5 rebar, and is available in most heights from 1-1/2″ to 7″ in 1/2″ increments.