ICF tooling facilitating the manufacturing of ICF blocks having different widths and different heights, the tie member including a variable width web portion positionable within a plurality of internal openings associated with a specially designed male tool, each internal opening being configured to receive folded web portions of varying length so that ICF blocks of different widths can be produced using the same male tool; each internal opening likewise includes a tie engaging feature for holding the respective tie members in their folded position within the male tool during the molding process; the internal openings enable foldable tie members of different widths to be used in the same male and female tools for producing ICF blocks in different widths in each individual separate male tool. ICF blocks of varying heights can be produced using the same female tool and a plurality of slightly modified height male tools.