Questions & Answers

StairEditor is a free online tool for designing and visualizing staircases. You can calculate dimensions, view 2D and 3D renderings, optimize for comfort using Blondel's law, and export professional PDFs.

No. The free editor requires no registration. You can design and preview layouts immediately; checkout is only needed to unlock exact technical measurements and exports.

Our calculations are based on Blondel's formula (2H + G = 600-650mm) and building code standards. They're accurate for design and planning, but always consult local building codes before construction.

You can design straight staircases, quarter-turn, half-turn (double quarter-turn), spiral, and alternating tread (Japanese) staircases.

Free designs are saved in your browser via the URL. Share the URL to share your design with others. Pro users (coming soon) will have cloud-based project saving.

The comfort grade is a 0-100 score based on how well your staircase follows Blondel's formula and building codes. Higher scores = more comfortable stairs.

Yes, you can switch between millimeters and inches from the parameter panel. Calculations stay in millimeters internally to keep a precise base.

Free users can preview the layout with locked measurements. Premium users unlock exact dimensions and get clean PDFs. DXF/CAD, STL/OBJ, and XLS exports are coming soon.

Yes, our PDFs include drawings, dimensions, and build checks. Detailed drawings cover straight, quarter-turn, and half-turn stairs. Always verify measurements and consult local building codes.

DXF is a CAD format that professional carpenters and CNC machines can read. This export is coming soon.

Not yet. STL/OBJ exports for physical mockups are coming soon.

Yes, the free tier has no limits on number of designs, edits, or views. You only pay when you want exact technical measurements and professional exports.

DIY Pass ($19) is one-time, good for 72 hours, perfect for a single project. Pro Monthly/Annual is for recurring use by professionals.

Yes, Pro Monthly can be cancelled anytime. Pro Annual comes with a 14-day refund guarantee.

Yes, we accept USD, EUR, GBP, and automatically detect your location. Prices adjust for your region.

StairEditor works on Chrome, Firefox, Safari, and Edge. Requires a modern browser with SVG and JavaScript support.

The public website is responsive. The full plan editor requires a desktop-sized screen so the parameters, drawings, and export tools have enough room.

Your designs are stored in your browser URL. We don't track you or store personal data. See our Privacy Policy for details.

Please report bugs via our contact form. We'll fix them as quickly as possible.