StairDesigner Software


Get everything you need to build your own stair projects…

Our software is now available to buy at our new Wood Designer website.

That’s not all…register for FREE at Wood Designer to start using StairDesigner today, plus access to exclusive services, 100s of video tutorials, stair templates, eBooks and lots more.

Click here for more info on StairDesigner or to buy

Click here to register for FREE at Wood Designer today

The Buy Now button below will now send you to our StairDesigner page over at Wood Designer.

Thanks very much!

Stair Building made EASY with StairDesigner

Stair software that automatically calculates, draws plans, elevations and 3D models, designs and builds all stairs, no matter how complex!

STAIRDESIGNER is a professional stair software, just type in the overall sizes and StairDesigner automatically :
  • Calculates the optimal number of steps and risers
  • Calculates the best shape and position of strings, winders, handrails, etc
  • Draws a complete and detailed 2D plans and elevations
  • Draws a complete and detailed plan of each separate stair part.
  • Builds  a 3D textured model that
  • Writes a cutting list of all the parts, with total bill of materials and prices
  • Writes a  clean and appropriately layered  DXF for each part, ready for CNC processing

Get from site dimensions to workshop plans and CNC machining in a few minutes!
  • Gain time and money
  • Cut out design and mark up errors
  • Stop unnecessary work
  • Easy to learn and even easier to use
Get a FREE version of StairDesigner by filling in the  form in the right margin.
The free version has all the features of the full version except for manufacturing output, you can:
  • Try all StairDesigner features for an unlimited time period
  • Build and calculate any stair
  • View your stair projects  in 2D and 3D
  • Use a screen capture to add plans and 3D views to other documents
  • Use my StairFile service to obtain all the working documents in PDF and DXF
Take a look at this this video for a rapid over view of StairDesigner possibilities:

A brief overview of StairDesigner software

StairDesigner allows you to build spiral stairs, straight flights, turning stairs with winders, curved stairs, central cut string stairs and more.

StairDesigner can be used for wood, metal or stone stair building.

Special functions are included for drawing stair parts (wood or marble) covering concrete stairs.

StairDesigner enables you to quickly input stair dimensions and automatically calculates the stairs to standard building regulations.

Easy and Safe
StairDesigner uses special algorithms to calculate and optimised stringers and step shapes and positions. This makes turning stairs with winders easy and safe to use. Stair Designer can build stairs with cut strings, boxed strings, straight, curved and wreathed.

StairDesigner calculates automatically all the stair parts, strings, steps, risers, newel posts, spindles and hand rails. The plans, parts and cutting lists can be printed out in a workshop folder and full size part templates can be printed as workshop mark ups for cutting and machining. DXF files can be exported for CAD/CAM programs and CNC routers.

Great Presentation
StairDesigner builds real 3D models with wood textures and lighting and transparency.

A Few StairDesigner features
Stair Wells and Flights:
  • Calculates spiral and helicoidal stairs.
  • Up to 7 Flights per stair.
  • Each flight can have its own length width.
  • variable angles for first and last steps.
  • Variable angles between each flight.

Automatic calculations and verifications
  • Calculates step height, going and tread line.
  • Verifies the 3 parameters H, G, et Tread line, with Min and Max values.
  • Quick wizard Fonction optimizes the number of steps and flight lengths.
  • Automatic and optimized dividing of balusters for closed and cut strings.

Balancement / winders and dancing steps
  • Automatic step balancing function. Gives optimized steps and stringers.
  • Fully parametric balancing function , work on groups, fix steps, works on any shape staircases.

S shaped stairs
  • With StairDesigner draw any shaped stair with up to 7 flights at any angle, any turn, each with its own specifications.
  • Draw S shaped stairs, L shaped stairs, U shaped stairs, any shaped stairs.

cad software for s shaped stairs

Steps and Risers
  • Move and rotate any step individually.
  • All assembly details are parametric, thickness, overlaps, recesses, etc.

Strings, Newel posts, and Handrails
  • Fully parametric straight, curved, wreathed, closed or cut strings.
  • Parametric newel posts, handrails and balusters.
Example of Stairs built with StairDesigner
Calculate and draw a quarter turn stair with winders:
Starting from on site dimensions that are input into StairDesigner. The program calculates the stairs, optimizes the number of steps, the step height and going and draws the plan.

  • Design time : about 30mins

stair calculator plans

Building a 3D model and printing out different 3D views:
StairDesigner builds automatically the 3D model. you can view the model in all its details to verify the design and export different views for commercial documentation.

  • Time to build the 3D model : 0mins

stair calculator 3D perspective drawing

Workshop drawings and folder:
Once the plans are drawn up StairDesigner creates automatically:

  • Workshop folder with a plan drawing and separate drawing for each stair part
  • Full size workshop templates
  • DXF files for CAD/CAM and CNC machining
  • Time to print workshop folder : 5 to 10 mins

stair building software drawings

Workshop templates:

cad software for stair builders templates

Cutting lists:
StairDesigner automatically prints out the cutting lists with:

  • Dimensions of each part
  • Total weight and price of the raw materials
  • Total volume of wood
  • Time to print cutting lists : 1 min

stair building software cutting lists

and here’s the finished stair:

cad software for stair builders finished stair

Download Documentation:
You can download all the drawings, workshop documents and DXF files for this stair from my free download page

Go to Documentation Page
Guarantee and Conditions of Sale
sealWe back up all our offers with a 30 day no questions asked money back guarantee. (minus £80 admin costs).

Try all our software for a full 30 days to see if they are right for you and your business. Test them on real projects and make them run your cnc machines.

If for any reason you are not happy, just uninstall StairDesigner and send us the uninstall code, we’ll send you your money back no questions asked.

Our objective is not just to sell you software, but to help you find the best solution for your needs and your business.

We want our customers to be 100% satisfied with our services.

Stairdesign DXF Pro
Ideal for professional stair builders makers gives all the design and manufacturing features, is sold with one years support and assistance.

StairDesigner DXF Pro costs: £1,575

(+ VAT if applicable*)

Click on the button below to buy your full version:
Installation Advice
Once you have paid, install the free/demo version of StairDesigner, send us the user code and we’ll send you back your activation code so that you can start using your software straight away.

For all pre-sale enquiries or if you would like to pay via bank transfer, please contact us here.

Don’t need to buy the full version
Use my StairFile service to get all the manufacturing documents for your stair, just click the button below:
Including a free revision of your project!

Go to our new StairFile Service Page

*If you are resident outside the European Union, you will not be charged Value Added Tax (VAT).


  1. i am in need of a staircase that can fit in a tight space without being to uncomfortable to use

  2. Hi,

    Thanks very much for your comment.
    It would be a pleasure to help you.
    However, can you post your questions on our forum please:

    This makes it much easier for us to track each project, and other members of Wood Designer can benefit too.
    You can upload images, design files and other attachments as well if you need to.

    If you haven’t already, you can sign up for free to access the forum here:

    On the same page you can also sign up for Full membership.
    This gives you access to Premium Support and all our training resources.

    Thanks again,

    Ness Tillson

  3. Kev cream says:

    Please send details for basic
    user easy program as lm looking at how to build stairs using steel. .
    Would this help me ???

    Thanks kev

  4. Hi Kev, thanks for your query. StairDesigner works with steel stairs. Please go to our website to download and test the software out. You can buy it or sign up instead for Premium Support which allows you to use the free version and receive your cut lists and plans. The first option is best for a workshop, the second for a one-off project. If you’ve got any technical questions, we’ve got a forum over at as well. All the best, Stefan

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