Stair Settings: Construction Tab

Parameter	Description	Applies to
Construction Styles	Saves and recalls styles from a saved set	All
View	Determines the view to apply the parameters to the stair; depending on drawing settings like layer scale and the document preference Hide details, the detailed or schematic view status is displayed	All
Detailed	Applies the construction parameters to stairs in a detailed layer scale view	All
Schematic	Applies the construction parameters to stairs in a schematic scaled view	All
Accept for all Views	Applies the construction parameters to stairs in all views (detailed and schematic)	All
Construction Configuration	Select the type of construction for the stair	All
Solid Stair	Models the stair structure as single, monolithic geometry, but still includes treads and risers	All
Stringer Underneath	Models the stair structure as one, two, or three stringers (carriages) underneath that support the treads and risers above them. If three stringers are specified, the third will automatically be centered between the others, not the edge of the steps.	All
Stringer Outside	Models the stair structure as two stringers (carriages) on either side of the stair which support the treads and risers above them	All
Concrete Stair	Models the stair structure as monolithic, without separate treads or risers	All
Circular Stair	For circular stair configurations, select to obtain circular stair construction parameters	All
Construction Settings		All
Landing Thickness	Specifies the thickness of the stair landing, excluding any treads. The landing thickness plus the tread thickness is equal to the distance from the top of the tread to the bottom of the landing (solid stairs) or stringer (stringer underneath)	Stairs with a single landing
Landing Thickness 1	Specifies the thickness of the first stair landing, excluding any treads	Stairs with two landings
Landing Thickness 2	Specifies the thickness of the second stair landing, excluding any treads	Stairs with two landings
Solid Structure Thickness	When selected, draws 3D geometry below the treads and risers representing the structural mass of the stair. Specify the distance from the rear face to the inside edge where the riser and tread meet.	Solid Concrete
Tread Thickness	When selected, draws 3D stair tread geometry; specify the tread thickness	Solid Stringer Underneath Stringer Outside
Riser Thickness	When selected, draws 3D stair riser geometry; specify the riser thickness	Solid Stringer Underneath Stringer Outside
Nosing/Riser Offset	When selected, draws both 2D and 3D stair nosing geometry; set the distance that the nosing extends past the riser face over the preceding tread	All
Create Top Riser and Nosing	For stairs with the Draw Top Tread option disabled on the Geometry tab, select whether to display the top riser and tread nosing in 3D views	All
Offset Right (or Inner Offset)	Offsets the stair body from the right/inner edge of the stair treads and riser by the distance specified; as determined by the stair width, configuration, and orientation	Solid Stringer Underneath
Offset Left (or Outer Offset)	Offsets the stair body from the left/outer edge of the stair treads and riser by the distance specified; as determined by the stair width, configuration, and orientation	Solid Stringer Underneath
Stringer Depth	Sets the stringer’s structural clear depth	Stringer Underneath Stringer Outside
Stringer Width	Sets the thickness (width) of the stringer	Stringer Underneath Stringer Outside
Stringer Distance	For stairs with one stringer, specifies the stringer’s offset distance from the center of the stair	Stringer Underneath
Tread/Stringer Offset	Sets the tread’s offset distance from the bottom of the stringer’s depth, as measured to the back, bottom edge of the tread	Stringer Outside
Stringer Extension at Stair Bottom	Specifies the distance that the stringer extends past the front edge of the starting (bottom) tread	Stringer Outside
Stringer Extension at Stair Top	Specifies the distance that the stringer extends past the front edge of the last (top) tread	Stringer Outside
Column	When selected, adds a central column	All, when stair configuration is Circular Stair
Custom Column Height	Specifies the central column height for spiral stairs	All, when stair configuration is Circular Stair
Custom Column Diameter	Specifies the central column diameter for spiral stairs	All, when stair configuration is Circular Stair
Outside Nosing	Sets the value for the tread nosing at the outside diameter of a circular stair	Circular stair, when stair configuration is also circular stair
Upper Floor Thickness	Wraps the 3D stair geometry at the top of the stair around the edge of the floor slab by the indicated distance, correctly terminating all parts related to the construction type. The stair object does not clip or join other objects such as slabs. You must ensure a correct fit by setting appropriate parameter values.	All (for solid and concrete stairs, this parameter is on the Upper Floor Connection Detail dialog box)
Lower Floor Thickness	Wraps the 3D stair geometry at the bottom of the stair around the edge of the floor slab by the indicated distance, correctly terminating all parts related to the construction type. If set to 0 (zero) truncates the stair geometry so the bottom of the stair rests on top of the slab. The stair object does not clip or join other objects such as slabs. You must ensure a correct fit by setting appropriate parameter values.	All (for solid and concrete stairs, this parameter is on the Lower Floor Connection Detail dialog box)
Upper/Lower Floor Connection Detail	Opens the Upper/Lower Floor Connection Detail dialog box to define the geometry and fit of the stair body with the adjacent floors. The stair object does not clip or join other objects such as slabs. You must ensure a correct fit by setting appropriate parameter values.	Solid Concrete

Stair Settings: Construction Tab

Upper Floor Connection Details

Lower Floor Connection Details