The Suono mini staircase is a staircase with extreme space-saving qualities, designed for the smallest ceiling openings. The stairs have high-quality powder coated metal elements and varnished steps made of birch plywood. The metal balustrade is also powder coated. The Suono staircase is an ideal space-saving, solid and budget friendly option. It is one of the smallest spiral staircases on the market. It features 12 steps, a diameter of 120cm / 140 cm and a height of up to 300 cm.