Hello gkersten!

The bullnose for this project is option 4, Stair Nose, from our Wood Molding and Trim found here: http://bit.ly/1mhnPLm. With most hardwood floors, there is the option to purchase these pieces in matching colors.
If you have any further questions please let us know, or give one of our sales associates a call at 877-558-8484.

Best wishes,
Tile-Stones.com

Thanks for your response...one more question though, how did you get the wood to match the porcelain tile? and can you show me a closer up photo of the bullnose

I do apologize gkersten, this image is featuring Hardwood Flooring. I do apologize, and I have made changes to the image description. I did look through our additional pictures, however this is the closest image we have of the bullnose.
That being said, there are lines of wood plank porcelain that offer bullnose options. Take for example, our Barrique Fonce ( http://bit.ly/1teoqTM) has an option for a bullnose and it is a darker WPP.
Again, I do apologize about that image being mislabeled; I am also going to verify the rest of our images.
Please let me know if you have any further questions.
-Amber
Tile-Stones.com

Thanks for the clarification. We are looking to use wood plank porcelian tile on our stairs instead of real hardwood. I figured it would be safer, as it is not a slippery as wood and looks so much like wood. Anyway, we will need a bullnose to fit on the end where the tread meets the riser. We are looking for a darker, reddish/brownish color...kindof an espresso color. Do you carry a wood plank porcelain with bullnose in a color similar to what we are looking for? Thank you

The Barrique series is the only series where we have readily available bullnose for Wood Plank Porcelain. However, we do have a Moka Wood Plank Porcelain option that might match what you are looking for ( http://bit.ly/1o0w1or). While there are not bullnose options readily available for that product, we may be able to create some options for you.
If you'd like to private message me your information, I can pass it along so the specifics can be discussed in creating, or adjusting something already made. With that being said, you can browse our Wood Plank Porcelain options and if one is the color you are looking for, include that in your message and I will relay that as well.
-Amber
Tile-Stones.com