Red Oak Cherry Retro Left Return Stair Tread 42 in

A:Your application where you are looking to install a new wood tread over an existing pine tread is exactly the application that these retro treads were designed for. The 3/4" thickness is the thickness of the body of the stair tread. The bullnose on the front is a full 1" thick, 1/4" thicker than the tread body. Here's a link that may give a more accurate description of the retro treads: http://woodstairco.com/retro-fit-my-stairs

A:The inside "throat" length of all single return treads is 1-1/4" shorter than the tread because the tread is made from a closed tread of the same length. For example, these will be the inside measurements of each single return tread: [42": 40-3/4"] [48": 46-3/4"] [54": 52-3/4"] [60": 58-3/4"]