Sites and apps similar to Stair-tech include Stairsmith, which is free and open source. Other options are Autostair and StairDesigner. In total there are three 3D Modelers like Stair-tech for Windows.
StairSmith is a free online staircase designer that lets you model stairs in 3D, check UK Building Regulations compliance, and export to IFC4X3 or DXF. No install, no signup.
Autostair simplifies the design of your staircase thanks to its simple and intuitive approach while offering advanced options.
Design and build all stairs, no matter how complex! Automatically calculates, draws plans, elevations and 3D models, so you can get on with building your project.
United Kingdom
