The Staircase Expansion Overview

The Staircase Expansion Overview

About the Expansion 

The Microvellum Staircase Expansion contains a collection of staircase layouts to plug into the Foundation Library. This article will provide you with an overview of the Staircase Expansion and contains a listing of products, subassembly, and options included. The staircase layouts are built from 3 main subassemblies: the staircase flight, and a left and right platform used for the winders. The Prompt Values feature is used extensively throughout the layouts to control prompt values between the parent product and the core subassemblies.

Staircase Master Products

Master Staircase

 
Description: This is a master straight staircase layout capable of being saved back to the library numerous times in several different combinations.

Main Options:
  1. Parametric Sizing Floor to Floor height/Flight Width.
  2. Ability to change the Flight type, Closed Stringer/Cut Stringer/Open Stringer/Open Cut Stringer/Box Stringer.
  3. Ability to change the tread qty.
  4. Ability to change the going size.
  5. Ability to add bullnose treads to the bottom of the staircase with a wide range of styles.
  6. Displays the riser height and the pitch angle of the staircase.
  7. Ability to add an outstep.
  8. Access to construction options.
  9. Access to Material options.
  10. Access to Advanced options.
  11. Access to 2D drawing options.
  12. Access to rendering options.
 
Additional Info: This product has all machining into the stringers as standard, options for balustrade, options to change the top and bottom cuts on the stringers. 
 


Master L-shape Staircase

 
Description: This is a master L-shape staircase layout capable of being saved back to the library numerous times in several different combinations.

Main Options:
  1. Parametric Sizing Floor to Floor height/Lower and Upper Flight Widths.
  2. Ability to change the top joist back wall width.
  3. Ability to change the top flight run.
  4. Ability to change the staircase orientation. Lefthand/Righthand.
  5. Ability to change the Flight type, Closed Stringer/Cut Stringer/Open Stringer/Open Cut Stringer/Box Stringer.
  6. Ability to change the total tread qty.
  7. Ability to change the going size.
  8. Ability to add bullnose treads to the bottom of the staircase with a wide range of styles.
  9. Displays the riser height and the pitch angle of the staircase.
  10. Ability to add an outstep.
  11. Access to construction options.
  12. Access to Material options.
  13. Access to Advanced options.
  14. Access to 2D drawing options.
  15. Access to rendering options.
 
Winder Options:
  1. Ability to change the winder options from Qtr Platform/ 2T Winders/ 3T Winders.
  2. Ability to change the winder corner condition. From wall/From Stringer/From Post.
  3. Ability to Add or remove the stringers around the winders.
Additional Info: This product has all machining into the stringers as standard, options for balustrade to lower and upper flights, options to change the top and bottom cuts on the stringers in both the lower and upper flights. 

Master C-shape Staircase

 
Description: This is a master C-shape staircase layout capable of being saved back to the library numerous times in several different combinations.

Main Options:
  1. Parametric Sizing Floor to Floor height/Lower, Middle and Upper Flight Widths.
  2. Ability to change the top joist back wall width.
  3. Ability to change the top flight run.
  4. Ability to change the middle flight run.
  5. Ability to change the back wall width.
  6. Ability to change the staircase orientation. Lefthand/Righthand.
  7. Ability to change the Flight type, Closed Stringer/Cut Stringer/Open Stringer/Open Cut Stringer/Box Stringer.
  8. Ability to change the total tread qty.
  9. Ability to change the going size.
  10. Ability to add bullnose treads to the bottom of the staircase with a wide range of styles.
  11. Displays the riser height and the pitch angle of the staircase.
  12. Ability to add an outstep.
  13. Access to construction options.
  14. Access to Material options.
  15. Access to Advanced options.
  16. Access to 2D drawing options.
  17. Access to rendering options.
 
Winder Options:
  1. Ability to change the top and bottom winder options from Qtr Platform/ 2T Winders/ 3T Winders.





  1. Ability to change the winder corner condition. From wall/From Stringer/From Post.
  2. Ability to Add or remove the stringers around the winders.

Additional Info: This product has all machining into the stringers as standard, options for balustrade to lower, middle, and upper flights, options to change the top and bottom cuts on the stringers in both the lower, middle and upper flights. 

Master U-shape Staircase

 
Description: This is a master U-shape staircase layout capable of being saved back to the library numerous times in several different combinations.

Main Options:
  1. Parametric Sizing Floor to Floor height/Lower and Upper Flight Widths.
  2. Ability to change the top joist back wall width.
  3. Ability to change the top flight run.
  4. Ability to change the middle flight run.
  5. Ability to change the back wall width.
  6. Ability to change the staircase orientation. Lefthand/Righthand.
  7. Ability to change the Flight type, Closed Stringer/Cut Stringer/Open Stringer/Open Cut Stringer/Box Stringer.
  8. Ability to change the total tread qty.
  9. Ability to change the going size.
  10. Ability to add bullnose treads to the bottom of the staircase with a wide range of styles.
  11. Displays the riser height and the pitch angle of the staircase.
  12. Ability to add an outstep.
  13. Access to construction options.
  14. Access to Material options.
  15. Access to Advanced options.
  16. Access to 2D drawing options.
  17. Access to rendering options.

Winder Options:
  1. Ability to change the top and bottom winder options from Qtr Platform/Half Platform/ 2T Winders/ 3T Winders.
  2. Ability to change the winder corner condition. From wall/From Stringer/From Post.
  3. Ability to Add or remove the stringers around the winders.

Additional Info: This product has all machining into the stringers as standard, options for balustrade to lower, middle, and upper flights, options to change the top and bottom cuts on the stringers in both the lower, middle, and upper flights.

Staircase Prompt Descriptions

Main Tab

Staircase Orientation



This is an option to change the handling of the staircase layout in L-shape, C-shape, and U-shape staircase layouts.
   

Flight Type

This option allows the use to change the style of the staircase. Options include Closed Stringer/Cut Stringer/Open Cut Stringer/Open Stringer/Box Stringer.
         

Floor To Floor Height


This is the height from the lower floor to the top floor, not including the floor coverings.
 

Finished Floor To Floor Height

This is the height from the lower floor to the top floor, including the top and bottom floor coverings.

Flight Width


This is the width of the staircase from outside of stringer to outside of the opposite stringer.
 

Lower Flight Width

This is the width of the staircase from outside of stringer to outside of the opposite stringer in layouts using a lower flight.

Middle Flight Width

This is the width of the staircase from outside of stringer to outside of the opposite stringer in layouts using a middle flight.

Upper Flight Width

This is the width of the staircase from outside of stringer to outside of the opposite stringer in layouts using an upper flight.

Box Stringer Width

This is the width of the box stringer when using the flight type Box Stringer.

Top Flight Run

This is the distance from the top joist to the inside corner of the top wall.

Middle Flight Run

This is the distance from the top inside corner to the bottom inside corner of the wall. Used in C-shape and U-shape staircase layouts.

Top Joist Back Wall

This is the distance from the top joist to the outside corner of the back wall.

Back Wall Width

This is the distance from the top joist to the outside corner of the back wall.

Bullnose Style






This adds a styled tread to the bottom of the staircase layout. Can add up to 2 bullnose treads. Note: Custom styles can be added to a lookup table in the factory workbook.
 

Going


This is the depth of the tread from the front of rise to front of the riser above, note this is not including the nosing overhang.
 

Add Outstep


This is to add a top step level with the top joist of the top floor. This may be used to extend the length of the flight if needed. 
 

Riser Height


This is the height of the riser’s form top of tread to the top of the above tread.
 

Riser Qty

This is the total number of risers in the staircase layout. This is just a reference as it is calculated by the total tread qty.

Tread Qty

This is the total number of treads in the staircase layout. This prompt is used in the Master Staircase.

Lower Tread Qty

This is the total number of treads on the lower flight. This is used in L-shape, C-shape, and U-shape staircase layouts.

Middle Tread Qty

This is the total number of treads on the middle flight. This is used in C-shape and U-shape staircase layouts.

Upper Tread Qty

This is the total number of treads on the Upper flight. This is used in L-shape, C-shape, and U-shape staircase layouts.

Pitch Angle


This is the angle of the staircase layout relative to the bottom and top floors.
 

Show Construction Options

Makes the Construction Options tab and prompts visible in the Product Prompts interface.

Show Material Options

Makes the Materials Options tab and prompts visible in the Product Prompts interface.

Show Advanced Options

Makes the Advance Construction Options tab and prompts visible in the Product Prompts interface.

Show Flatshot Options

Makes the Flatshot Options tab and prompts visible in the Product Prompts interface.

Show Item Number Options

Makes the Item Number Options tab and prompts visible in the Product Prompts interface.

Show 2D Drawing Options

Makes the 2D Drawing Options tab and prompts visible in the Product Prompts interface.


Construction Options Tab

Bottom Flooring Thickness

This is the thickness of the flooring on the bottom floor, such as timber flooring, carpet, tiles. This will add this measurement to the finished floor to floor height of the staircase layout.

Top Flooring Thickness

This is the thickness of the flooring on the top floor, such as timber flooring, carpet, tiles. This will add this measurement to the finished floor to floor height of the staircase layout.

Left Bottom Cut

This is an option to change the bottom cut style on the left stringer options include Foot Cut/Tennon Cut/Lower Flight Tennon Cut/Skirting Cut/Birds Mouth Cut/Extend/Keyway/Heel Cut. This can be added to through a lookup table in the Staircase Subassembly.

Left Top Cut

This is an option to change the top cut style on the left stringer options include Standard Horn Cut/Tennon Cut/Extended Horn Cut/Plumb Cut/Flat Cut/Extend/Keyway. This can be added to through a lookup table in the Staircase Subassembly.

Right Bottom Cut

This is an option to change the bottom cut style on the right stringer options include Foot Cut/Tennon Cut/Lower Flight Tennon Cut/Skirting Cut/Birds Mouth Cut/Extend/Keyway/Heel Cut. This can be added to through a lookup table in the Staircase Subassembly.

Right Top Cut

This is an option to change the top cut style on the right stringer options include Standard Horn Cut/Tennon Cut/Extended Horn Cut/Plumb Cut/Flat Cut/Extend/Keyway. This can be added to through a lookup table in the Staircase Subassembly.

Left Foot Cut Offset


This is the distance the foot cut on the left stringer extends from the face of first riser.
 

Right Foot Cut Offset


This is the distance the foot cut on the Right stringer extends from the face of first riser.
 

Nosing overhang


This is the amount the tread overhangs the rise at the front of the tread.
 

Nosing Radius


This is used to add a radius to the front of the treads. This can be set to 0 if using a 900 tool which will allow for the use of different cutter diameters.
 

Outstep Width


This is the width of the top out step.
 

Stringer Width Left


This is the width of the stringer on the lefthand side of the layout.
 

Stringer Width Right


This is the width of the stringer on the righthand side of the layout.
 

Left Stringer Join


Used to add a join in the lefthand stringer.
 

Left Stringer Joint Type

Can change the type of the join from, Butt Joint/Keyway/Double Keyway. This can be added to through a lookup table in the Staircase Subassembly.

Left Stringer Join at Tread

This is used to change the position of the stringer join, user can select the tread the join is required on.

Right Stringer Join


Used to add a join in the righthand stringer.
 

Right Stringer Joint Type

Can change the type of the join from, Butt Joint/Keyway/Double Keyway. This can be added to through a lookup table in the Staircase Subassembly.

Right Stringer Join at Tread

This is used to change the position of the stringer join, user can select the tread the join is required on.

Tread Overhang Left

This is the amount the tread can overhang the stringer on the left when using a flight type of cut stringer, open cut stringer or box stringer.

Tread Overhang Right

This is the amount the tread can overhang the stringer on the right when using a flight type of cut stringer, open cut stringer or box stringer.

Cut Stringer Relief Left


Used to add a relief on the left stringer at the back point of the tread.
 

Cut Stringer Relief Right


Used to add a relief on the right stringer at the back point of the tread.
 

Miter Risers Left

Used to miter the risers into the left stringer. 

Miter Risers Right

Used to miter the risers into the right stringer.

Offset Keyway Left

This is the amount required to offset the left keyway join from the front of the stringer.

Offset Keyway Right

This is the amount required to offset the right keyway join from the front of the stringer.

Advanced Construction Options Tab

Outstep Top Floor Overhang

This is the amount the outstep overhangs the top floor.

Pitch Line Setback


This is the amount the front of the tread is setback from the front edge of the stringers.
 

Horn Cut Height


This is the height of the horn cut that extends past the top joist or landing. 
 

Horn Cut Overhang


This is the amount the top horn cut overhangs from the back of the top riser. 
 

Tenon Depth

This is the amount the stringer in tenoned into the posts.

Wedge Angle


This is the angle of the wedge pocket used on closed stringers.
 

Wedge Tolerance


This is the tolerance of the wedge from the back of the riser and bottom of the tread.
 

Cut Stringer Relief Depth


This is the depth and height of the cut stringer relief. Note: this must be bigger that the radius of the tool being used to do the relief.
 

Left Stringer Type

This gives the user the option to change the stringer type on the left side of the staircase layout. Options include Closed Stringer/Cut Stringer/Open Cut Stringer/Open Stringer/Box Stringer

Right Stringer Type

This gives the user the option to change the stringer type on the right side of the staircase layout. Options include Closed Stringer/Cut Stringer/Open Cut Stringer/Open Stringer/Box Stringer

Skirting Height


This is the height of the skirting used to calculate the height of bottom cut styles on stringers.
 

Material Options Tab

Stringer Material

Option to change the material used for the stringers.

Tread Material

Option to change the material used for the treads.

Riser Material

Option to change the material used for the risers.

Post Material

Option to change the material used for the posts.

Winder Options

Add Stringers

This will add stringers to the outside of the winder selected. When unselected ledgers will be added the underside of the winders. Used in L-shape layouts.

Add Stringers Bottom Winder

This will add stringers to the outside of the bottom winder selected. When unselected ledgers will be added the underside of the winders. Used in C-shape and U-shape layouts.

Add Stringers Top Winder

This will add stringers to the outside of the top winder selected. When unselected ledgers will be added the underside of the winders. Used in C-shape and U-shape layouts.

Winder Options

This gives the user the option to change the winder options in L-shape staircase layouts. Options include Qtr Platform/2T Winder/3T Winder.

Bottom Winder Options

This gives the user the option to change the bottom winder options in C-shape and U-shape staircase layouts. Options include Qtr Platform/2T Winder/3T Winder.

Top Winder Options

This gives the user the option to change the top winder options in C-shape and U-shape staircase layouts. Options include Qtr Platform/2T Winder/3T Winder.

From Wall

This option will force the inside corner of the winders to intersect the inside corner of the wall.

From Stringer

This option will force the inside corner of the winders to intersect the inside corner of the stringers.

From Post

This option will force the inside corner of the winders to intersect the inside corner of the post.

Bottom Winder Extension

This option is used to increase or decrease the length of the front edge of the bottom winder Tread.

Top Winder Extension

This option is used to increase or decrease the length of the back edge of the top winder Tread.

Upper Bottom Winder Extension

This option is used to increase or decrease the length of the front edge of the bottom winder Tread in bottom winders. Only used in Staircase layouts that use Top and bottom winders. C-shape and U-shape layouts.

Upper Top Winder Extension

This option is used to increase or decrease the length of the back edge of the top winder Tread in upper winders. Only used in Staircase layouts that use Top and bottom winders. C-shape and U-shape layouts.

Balustrade Options

Note: All the below prompts use an interaction of Lower, Middle, and Upper in the name of the prompt when being used in layouts that have a lower Flight, Middle Flight, and Upper flight.

Face Of Left Bottom Post

This is the amount the bottom left post is offset from the front of the top riser.

Face Of Left Top Post

This is the amount the top left post is offset from the front of the top riser.

Face Of Right Bottom Post

This is the amount the bottom right post is offset from the front of the top riser.

Face Of Right Top Post

This is the amount the top Right post is offset from the front of the top riser.

Baluster Type

An option used to change the type of balusters used in the balustrade. More styles can be added to a lookup table in the Factory workbook.

Balustrade Bottom Rail

An option used to change the type of bottom rail used in the balustrade. More styles can be added to a lookup table in the Factory workbook.

Balustrade Top Rail

An option used to change the type of top rail used in the balustrade. More styles can be added to a lookup table in the Factory workbook.

Handrail Offset

This option is used to offset the handrail from the wall.

Handrail Type

An option used to change the type of handrail that attaches to the wall. More styles can be added to a lookup table in the Factory workbook.

Left None

Selection to have no balustrade on the lefthand side of the staircase layout.

Left Balustrade

Selection to have balustrade on the lefthand side of the staircase layout.

Left Glass Balustrade

Selection to have glass balustrade on the lefthand side of the staircase layout.

Left Handrail

Selection to have a handrail attached to the wall on the lefthand side of the staircase layout.

Right None

Selection to have no balustrade on the righthand side of the staircase layout.

Right Balustrade

Selection to have balustrade on the righthand side of the staircase layout.

Right Glass Balustrade

Selection to have glass balustrade on the righthand side of the staircase layout.

Right Handrail

Selection to have a handrail attached to the wall on the righthand side of the staircase layout.

Option Lists

Staircase Construction Options

Top Cut


Standard Horn Cut

Tennon Cut

Extended Horn Cut

Plumb Cut

Flat Cut

Extend 

Keyway



Bottom Cut



Foot Cut

Heel Cut

Tennon Cut

Lower Flight Tennon Cut

Skirting Cut

Birds Mouth Cut

Extend

Keyway

  

Bullnose Style Options


R90 + R330 Double Ended

R90 Double Ended Flight

R90 Double Ended

R170 + R290 Double Ended

R170 Double Ended

R240 Double Ended

S90 + S240 Single Ended

S90 Double Ended

S240 Double Ended

Left R90 + R90 Single Ended

Left R90 + R330 Single Ended

Left R90 Single Ended Flight

Left R90 Single Ended

Left R170 + R290 Single Ended

Left R170 Single Ended

Left R240 Single Ended

Left S90 + S240 Single Ended

Left S90 Single Ended Flight

Left S90 Single Ended

Left S240 Single Ended

Right R90 + R90 Single Ended

Right R90 + R330 Single Ended

Right R90 Single Ended Flight

Right R90 Single Ended

Right R170 + R290 Single Ended

Right R170 Single Ended

Right R240 Single Ended

Right S90 + S240 Single Ended

Right S90 Single Ended Flight

Right S90 Single Ended

Right S240 Single Ended


Additional Info


If the Winder corner is set from the post, associative machining is applied on the post from the tread and the risers.

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