Install the Hardwood Landing
Staple down 15-lb. roofing felt to the area. Install the nosing border (image 1) that's cut at a 45-degree angle by pre-drilling the wood, and attach with 2-1/4" trim screws. Since the nosing has a groove facing out, insert a spline (image 2) in order to create a tongue for the wood flooring to connect to. Use a rubber mallet and protective block to tap the hardwood planks into position, and then secure it in place using a pneumatic floor nailer. Stagger the planks as you work across the landing. The wall may prevent the use of the floor nailer on the last few rows, so use a regular nail gun with finishing nails in the edge of the boards. Rip cut floor boards for the last row and nail in place. Finish the landing's new hardwood floor by filling the holes with wood putty.