A very comfortable stair that most clients find to be very roomy. If your opening allows for a 66″ diameter stair, then you will not be disappointed choosing this over a smaller staircase. These spiral stairs do not cost a great deal more than smaller kits, but often feel like it is giving a great more utility. This stair complies with & exceeds the minimum step space clearance for most code requirements. The 30″ clear step space is great for carrying larger, bulky items up & down stairs.