Radial profiles of the maximum dust size a_max (orange symbols), for all six models with different maximum allowed size, $a_{\text{max }}^{\text{cap}}$. The six panels (from left to right, top to bottom) correspond to models with $a_{\text{max }}^{\text{cap}}$=10 μm, $a_{\text{max }}^{\text{cap}}$=100 μm, $a_{\text{max }}^{\text{cap}}$=1.0 mm, $a_{\text{max }}^{\text{cap}}$=1.0 cm, $a_{\text{max }}^{\text{cap}}$=10 cm, and $a_{\text{max }}^{\text{cap}}$=100 cm. Blue curves indicate the maximum dust sizes in the fragmentation-limited dust growth regime for fragmentation velocities of 0.5 m s⁻¹ (lower solid curve), 10 m s⁻¹ (middle dashed curve), and 50 m s⁻¹ (upper solid curve). Black dotted curves illustrate dust sizes for fixed Stokes numbers of 0.1, 0.01, and 0.001 (from top to bottom). The red curve marks the boundary between the Stokes and Epstein drag regimes.