Spiral stairs with different diameters and rotations Small – 4×4 Medium – 5×5 + extra 6×6 Large – 8×8 Giant – 12×12   Sections are modular if you use 90° or 360°. Stacking the others will get weird in some cases. How to: Do not delete orange “anchors” until the section is properly placed unless … Continue reading Modular spiral staircases in different sizes