Dimension settings in WordPress control spacing and sizing throughout your block theme. The core controls are padding and margin, which offer both predefined palette options and custom value inputs.
Both padding and margin controls work identically, letting you set values for all sides at once or target specific sides (top, right, bottom, left) individually. This granular control helps create precise layouts while maintaining design consistency.
Block spacing (block gap) appears here too, allowing per-block overrides of your global spacing settings. You can choose from your spacing palette or set custom values for specific design needs.
Group blocks add minimum height controls to the dimension settings, giving you additional layout flexibility for creating full-height sections and other advanced designs.