Landing components are specified as part of the style, but apply only to multi-landing and U-shaped stairs. Stringer dimensions are specified for the flight and landing in a single table. The flight stringer type (slab, housed, or saddled) controls what is available for the landing (total depth only for housed and ramp, waist depth for all types). If the flight has no stringers, the landing has none.
All landings of a single stair initially use the same dimensions. You can then customize each one separately by grip-stretching or projection. Horizontal positions and the widths of stringers are identical between flights and landings.
Landing extension values apply only to U-shaped and multi-landing stairs with flat landings. Landing-specific dimensions are ignored for turn landings. The default values for styles in the Stair Styles drawing are specified in accordance with the most common situation for stairs.
If the option to resolve the meeting of flight and landing stringers is off, the flight stringer terminates at the landing.