Oak wood step w/ nosing is available for all fully assembled, interior spiral stair case applications. Available in 1" or 1 1/4" thickness, this solid oak overlay provides solid, and beautiful walking surface. The oak wood nosing is deigned to hid the baluster contention to the step, and also conceal the end grain making for a very finished look. Each one one of the steps is hand made in our wood shop, and carefully fitted before shipping, insuring your steps will fit seamlessly for your spiral stair application.