Stair Nosing Installation Question

Q: We recently ordered an engineered hardwood floor (Appalachian) for our kitchen, living room, and hallway. Most of the installation should be straightforward; however, the kitchen is raised and will require stair nosing on both sides of the room. We are planning to do a floating installation ourselves. My concern is two-fold: first, I am sure the width of the room will not exactly match the width of two stair noses and an even number of planks, so where is the best place to adjust for that… a random row, a stair nose? Second, since we are doing a floating installation, the planks will be glued together in the tongue and groove. I’m not sure how to attach the second stair nose to the adjacent plank, as it will be groove facing groove, or possibly ripped edge facing groove (if that’s how to shorten the width). I’m so confused! Thanks for the help.
-Katie
A: Appalachian‘s stair nosing comes in 6’ 6″ lengths so more than likely you will need to use multiple nosing on each side. As far as adjusting for it, it becomes a matter of opinion of what looks best to you. If it looks best to have the split between the two noses toward the middle of the room, try for that or align it in a way that looks best to you. Keep in mind that the nosings themselves are meant to be glued down to the subfloor, so account for this when you are preparing for your install. This may require you to shim the nosing up some to meet the floor’s height accounting for your underlayment.
For the side of the floor where you will have groove to groove, this is actually pretty simple. All you will need is a spline (also called a slip tongue). This acts as a tongue which you will glue into place in both grooves to anchor the floor to the nosing. Just make sure you give the adhesive plenty of time to cure before putting any weight on the floor.