Chapter 9
Stairs and Railings
Objectives
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Use the Stair command (StairAdd) to create Straight, Multi-landing, Ushaped, U-shaped Winder, and Spiral stairs.
Create a stair tower in a project and a custom stair.
Constrain the number of risers, tread size, riser size, and run of a stair
using Calculation Rules.
Edit the style, shape, turn type, width, height, and justification to create
stairs.
Identify the purpose of grips located on various stair shapes.
Create, edit, import, and export stair and railing styles using the Style
Manager or Content Browser.
Control the visibility of the lower or upper portions of stairs using the
display properties.
Modify the stair edge with the following Customize Edge options: Offset,
Project, Remove Customization, and Generate Polyline.
Anchor an isolated stair to a stair landing and anchor a railing to an AEC
object.
Use the Railing command (RailingAdd) to create railings that are
freestanding, attached to stairs, and attached to stair flights.
Create railing styles.
Creating a Stair Construct
• Create the stair in a construct drawing that
spans multiple levels
• Attach floor plans as reference to the stair
construct
• Stair is displayed in the view drawings for each
floor served by the stair
• Create the stair construct drawing in the Project
Navigator
Create Stair Construct
Display of Stair in View Drawings
Placing Stair with Floor Plan
Attachment
StairAdd Command
Specify Flight Start and
Flight End
Stair Properties Palette
Stair Properties Content
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Basic-General
– Description
– Style
– Shape-U Shaped, Multi-Landing,
Spiral, Straight
– Turn type
– Horizontal Orientation
– Vertical Orientation
Dimensions
– A-Width
– B-Height
– Justify
– Terminate with
– Calculation Rules
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Straight Length
Riser Count
Riser
Tread
Riser/Tread Calculation
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Advanced-Floor Settings
– Top Offset
– Bottom Offset
Flight Height
– Minimum Limit Type
– Minimum Height
– Minimum Risers
– Maximum Limit Type
– Maximum Height
– Maximum Risers
Interference
– Headroom
– Right Clearance
Worksheets
– Components
– Landing Extensions
Stair Shapes
Turn Types
Insert U-shaped Stair
Flight start point or:
(Select p1)
Flight end point or:
(Select p2)
Flight start point or:
Escape
Setting Stair Dimensions
• A-Width-specifies total width of the stair
• B-Height-specify finish floor to finish floor
distance
• Justify-specify the handle to insert the stair
• Calculation Rules button opens the
Calculation Rules dialog box to control AStair Length, B-Riser Count, C-Riser, and
D-Tread.
• Calculation Rules can be set to Automatic
or Manual
Terminate with Options
Top Offset
Calculation Rules
Flight Height
• Minimum and maximum limits can be
set for a stair flight.
• Control of stair flight based upon:
• Height of flight
• Number of Risers
• Landing is placed in stair when flight
exceeds maximum flight
Interference
• Specify a
headroom
distance, walls
and other AEC
objects cut to
provide
headroom.
• Left/Right
Clearance value
cuts AEC objects
around the four
sides of the stair
Worksheets
• Components and Landing Extension
buttons opens the Stair Components
and Landing Extensions dialog boxes
• Dialog boxes are inactive if Allow Each
Stair to Vary is toggled OFF in the Stair
Style
Worksheet-Stair Components
Worksheets-Landing Extensions
Multi-landing Stair
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Flight start point or: (Select point p1 as shown above.)
Flight end point or: ( Select point p2 as shown above.)
Flight start point or: (Select point p3 as shown above.)
Flight end point or: (Select p4 as shown above.)
Counter-clockwise Horizontal
Oriented U-Shaped Stair
Winder U-shaped Stair
Placing a Spiral Stair
• Select center of stair
and start point to
place spiral stair
• Horizontal orientationclockwise or
counterclockwise
• Arc Constraint-free,
total degrees, or
degrees per tread
• Arc angle-total angle
of stair sweep
Grips of the Straight Stair
Edit Edges Grips
• Flight taper
grip
• Flight width
• Vertex
• Edge
• Landing Width
Grips of Multi-landing
Edit Edges toggled Off
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Lengthen Flight
Flight Start
Move Flight
Turn Point
Lengthen Stair
Move Multilanding
Customizing Edge of Stair
• Use StairOffset to
Offset edge of stair a
specified distance
• Project edge of stair
to a wall or polyline,
shown at left
• Remove
Customization of an
edge
• Generate a polyline
from the edge
Project Stair to Wall
Stair Styles of the
Design Tool Catalog-Imperial and
Metric
Edit an Existing Stair Style
• Select stair, right-click and choose Edit Stair Style
Stair Design Specified in
Design Rules Tab
Stringers Design in
the Stair Style
Design of Components
in the Stair Style
Landing Extensions Design
in the Stair Style
Assigning Materials in the
Stair Style
Materials Applied to a Stair
Classifications Tab of
a Stair Style
Display Properties of a Stair
Style
Version History Tab
Stair Display Control
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Override Display Configuration Cut
Plane check box is clear for the
Standard stair style
Display configuration settings
display the lower half of stair and
turn off the display of the upper half
Plan Intermediate Level display
representation is intended for
display of stair tower for floors
between the first and top levels.
If Override is checked, the stair is
displayed independent of the
display configuration cut plane. The
stair components are turned on or
off in the Layer/Color/Linetype tab
of Display Properties
Control of Stair Display Using
Display Components
Display of Stair Controlled
Using Display Configuration
Custom Stair
• Select a stair and choose Convert from
the Custom Stair panel
• Select a stair, right-click and choose
Convert to Custom Stair.
Edit Tread/Riser of Custom Stair
• Edit Tread/Riser
activates grips
which allow the edit
of each tread or
riser.
StairToolToLinework Command
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(Right-click a stair tool and choose Apply Tool Properties
to>Linework.)
Pick left and right sides: (Choose arc at p1
Pick left and right sides: (Choose arc at p2l
Pick left and right sides: (Press ENTER to end selection.)
Select stair path: (Press ENTER to choose Automatic path.)
Select user defined left stringer path<use left side>: (Press
ENTER.)
Select user defined right stringer path<use right side>: (Press
ENTER.)
Select user defined center stringer path<use stair path>: (Press
ENTER.)
Select first tread at current level: (Select the line at p3.)
Select remaining treads: (Select the line at p4.)
Select remaining treads: (Select the line at p5.)
Select remaining treads: (Select the line at p6.)
elect remaining treads: (Select the line at p7.)
Select remaining treads: (Select the line at p8.)
Select remaining treads: (Select the line at p9.)
Select remaining treads: (Select the line at p10.)
Select remaining treads: (Select the line at p11)
Select remaining treads: ENTER (Press ENTER ends tread
selection.)
(Edit the Convert to Stair dialog box. Check the Erase Layout
Geometry check box.)
Edit Tread/Riser of Custom Stair
Grip Edit Using Edit Tread/Riser
Accessing Match Tread/Riser
Applying Match Tread/Riser
• Command: _AecStairMatchTread
• Match [Tread/Riser/Both] <Tread>:
T
• Select source tread to match:
(Select tread at p1.)
• Select destination tread(s) to
replace: (Select tread at p2.)
• Select destination tread(s) to
replace [Undo]: ENTER
Accessing Stair Tower Generate
• Stair must be
generated within a
project from a stair
construct drawing.
• Floor to Floor
Height of the
project is applied to
the stair.
Stair Tower Generate
• Select Stair Tower from the Design
tool palette
• Stair Tower creates within a
project a stair drawing construct
assigned to each level of a project
• Stair Tower Generate command
creates additional stairs, slabs,
and railings for each level of a
project
Creating a Stair Tower
• (Select the stair at p1,
right click and choose
Generate Stair Tower.)
• Select railings and slabs:
(Select slab at p2.)
• Select railings and slabs:
ENTER (Press ENTER to
end selection.)
• (The Select Levels dialog
box opens, which
specifies the floor to floor
height.)
• Stair tower generated as
shown at right
RailingAdd Command
Railing Attach to Options
Attach to:
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Stair-railing is attached to the entire stair
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Stair Flight-railing is attached to a flight
segment of a multi-landing stair
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None-railing is placed free standing,
applied free standing to a porch or deck
Components of Railing
Additional Railing Styles
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22 available railing styles
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Content Browser-
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Design Tool Catalog-Imperial>Stairs and Railings>Railings
Design Tool Catalog-Metric>Stairs and Railings>Railings
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Style Manager
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Railing styles located in the C:/Documents and Settings\All
Users\Application Data\Autodesk\ACA 2010\enu\Styles\Imperial
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C:/Documents and Settings\All Users\Application
Data\Autodesk\ACA 2010\enu\Styles\Metric
Railing Rail Location Design
in a Railing Style
Railing Post Location Design
in a Railing Style
Railing Components Design in
a Railing Style
Railing Extensions Design
in a Railing Style
Materials Design
in a Railing Style
Railing Display Properties
in a Railing Style
Railing Grips
Railing Contextual Tab
Editing Post Locations
To add a post at a specified
location
Select a railing, right click and
choose Post Placement>Add
To remove posts
Select a railing, right click and
choose Post
Placement>Remove
To hide posts that have been
added
Select a railing, right click and
choose Post Placement>Hide
To show post that have been
hidden
Select a railing, right click and
choose Post Placement>Show
To reset posts along the railing
Select a railing, right-click, and
choose Post
Placement>Redistribute