Single-End Bullnose Starting Step 72" : C-8010-72Part Number: C 8010 72 Available in Red Oak 1 thick top tread, reversible for left or right side Cove, shoe mouldings included Assembly is required Overall Height: 8 Tread Depth: 11 , and 12 on the curved end Overall Length: 82 3 8 The 8010 72 step is recommended for stairs with a finished width of 72 or less, and only requires one curved finished end.