### Composite Check Box

The Composite check box controls whether or not the primary dimension row and secondary dimension row should use the same symbol in a single merged cell that spans both rows. When you select this check box, the symbol displays like this:

If you clear the check box, the primary and secondary rows display with separate symbols, even if the symbol represents the same thing.

The ASME Y14.5 – 1994 Geometric Dimensioning and Tolerancing describes the differences in interpreting these conditions.