Interior staircases are able to enhance the living room or the foyer. Depending on the choice of materials, the layout of the staircase and the location the interior stair can let light into the room and radiate warmth or modern style. FORMO manufactures stairs in glass and steel. The stair treads could be from wood or minerals like granite or concrete. Especially indoors the choice of materials and the finishing of the surface have a great impact. We emphasize a good haptics of materials and excellent finishing.