Ever since I was a young girl, spiral stairs have caught my fancy, and from the first time I saw a small flight of traditional library steps, I knew I wanted to build a set one day. Fast forward a few decades, and I offer you my take on this classic three-step spiral stair. Featuring coopered risers box-joined to trapezoidal treads with mitered corners, these three steps pack in a wide range of both machine and hand tool techniques. Careful, precise work will bring all your joints home at final glue up, resulting in a dazzling spiral that’s practical, too: they’re easy to move around as needed for a lift, and they stow beautifully in any corner.
Box joints with a mitered corner
Two sets of coopered risers support three trapezoidal treads
