You can download and test StairDesigner by clicking on the link below. The free version of our stair design software includes all design features so you can start your project straight away. The only thing it doesn't do is output the manufacturing files. You'll need the paid version to do that, but we've got sample output files available on the download page.
We can also arrange an online demonstration if you would like us to show you round StairDesigner. It's a good opportunity to ask any technical queries you have at the same time.
If you only build stairs occasionally, please consider StairFile, our cut list and plan processing service. Instead of buying the software, sign up for a Premium Support subscription to access this service free of charge.