Face Glued vs. Edge Glued Nose
When you look up at a staircase, the face of the tread is what you see. Most suppliers that we're aware of sell treads with a face glued nose.
We sell mostly treads with an edge glued nose. Here's the difference:
Face vs. Edge Glued
The tread on the left in the below image is has an edge glued nose. The image on the right is a face glued nose. Looking up at the stairs, the edge glued tread on the left will have a much cleaner look.
You can find that tread here.
We also have a limited quantity of the tread on the right at a slightly discounted price here.