Floating Hardwood Meets Stair
Q: I'm going to install Mannington Caspian 5" LocNgo and I have a problem with the hallway. One side of the hall is wall, the other meets the molding to the railing overlooking stairs. The easiest solution would be to lay a board flush with the molding and the milled straight edge should look fine against the molding. By doing so however, a 1 inch strip of floor will be required on the wall end. I think 1 inch is too small. I don't want to rip the plank that hits the stair molding because I don't think the cut will be straight enough. The floor and banister molding are the same height. Do you have any ideas? Is there some molding that I could put between the railing molding and the floor that isn't as wide as a T-molding or end cap?
Thank you for any advice.
KC
I did some quick follow-up in order to get a couple of photos of the hallway and stair. Here's what KC sent along:
Attached are 2 pictures. The width of the wood where the balusters are inserted is 6 inches.
I've thought of another idea which would mean replacing that piece of wood with 5.25 landing tread that would go all the way across. That would take care of the step down to the stair as well, but entail a lot of work with the railing. I should also mention that the hallway width at the newel is 37 inches and at the wall end of the rail is 36 inches.
Here you can see the hallway and the board KC mentions.

Here you can see the Newel and the stair.

A: Assuming you are willing to put in the work, replacing the board below the posts will be the most professional appearance. Now as far as a molding solution, even baby thresholds or end caps are still going to be about 2" wide.
A way to get some extra room would be to under cut the base mold and dry wall area along the walls for your expansion gaps. This will allow the flooring itself to slide underneath, look professional and give you a few extra inches of room so you can rip a wider plank than 1". If you were to use a baby threshold or end cap before the board under your posts, leaving a small expansion gap under the trim if its overlapping, then you would have about a 3" or slightly wider board to rip to go against your wall, which would be more than enough. I do agree with your suspicions that a 1" wide plank is not a good idea, simply put, its not stable.
End result here, if you are willing to put in the word to use a tread, that will be your best result. Undercut your base molding and drywall to get just a bit more expansion room and you should be set. Otherwise, keep with the undercutting and use an appropriate trim along the board under the posts and up to the newel.
