Stair settings: Construction tab
The settings on the tab can be saved as a set and then loaded, replacing the current tab parameters.
Click the Construction tab to specify stair construction parameters. The parameters displayed depend on the selected construction configuration.
Click to show/hide the parameters.Click to show/hide the parameters.
Parameter |
Description |
Applies to |
Construction Settings |
Saves settings so they can quickly be applied again; see Using saved sets for stair settings |
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 |
Tread Thickness |
When selected, draws 3D stair tread geometry; specify the tread thickness |
Solid |
Riser Thickness |
When selected, draws 3D stair riser geometry; specify the riser thickness |
Solid |
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 |
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 Depth |
Sets the stringer’s structural clear depth |
Stringer Underneath |
Stringer Width |
Sets the thickness (width) of the stringer |
Stringer Underneath |
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 |
For a solid or concrete Construction Configuration, click Upper/Lower Floor Connection Detail to open the Upper Floor Connection Detail dialog box or Lower Floor Connection detail dialog box.
Upper floor connection details
Click to show/hide the parameters.Click to show/hide the parameters.
Parameter |
Description |
Option |
Select the appropriate option for your construction: Notch Top cuts a notch from the top of the stair body. Notch Bottom cuts a notch from the bottom of the stair body. If Draw Top Tread is not selected on the Stair Settings Geometry pane, there are no options to select before setting values. |
Values |
The stair profile graphic changes to display the parameters appropriate for the selected Option. The dot at one end of each red line indicates the locked end of the line; the value is measured from that point. Specify the various inset, thickness, and depth values. If the Notch Bottom option is selected, choose whether to calculate the bottom notch depth value automatically by Until Stair Body or to set a Custom Length. |
Lower floor connection details
Click to show/hide the parameters.Click to show/hide the parameters.
Parameter |
Description |
Option |
Select the appropriate option for your construction: Butt aligns the bottom face of the stair body with the lower floor and creates a flat front face Butt with chamfer creates a chamfer at the intersection of the horizontal and sloped parts of the stair structure Notch aligns the bottom of the stair body with the lower floor and extends the upper part of the stair body by a custom offset Notch with chamfer creates a notch in the lower part of the stair structure and a chamfer at the intersection of the horizontal and sloped parts of the stair structure Inset creates a horizontal bottom face of the stair body and aligns the front face with the first step |
Values |
The stair profile graphic changes to display the parameters appropriate for the selected Option. For an Option with a chamfer, select whether to specify the support depth or the chamfer. The dot at one end of each red line indicates the locked end of the line; the value is measured from that point. Specify the various inset, thickness, and depth values. If the Inset option is selected, choose whether to calculate the support depth value automatically by Stair Body Thickness or to set a Custom Length. |