Have you considered polycarbonate instead of glass? It's much stronger, unbreakable, etc. Birgit

If you have a knee-wall on the open side of your staircase, I am assuming you want to put the glass on top of that.....how much glass are we talking? Probably not as much as you showed in the pictures. I think it would look nice and so what if it gets smudged....little ones like to help mom or dad clean. Just as someone mentioned....tell your contractor what you want, give them measurements and they can get it done. I would probably use a thicker glass but your contractor can help with that. Would like to see pictures when you are done.

The glass in question will be the railing for my stairs. The location of the stairs is such that you will only see the glass from a sharp angle, either at the bottom looking up at the glass or at the top looking down. There's really no way to look straight through the glass. There is nothing interesting to see on either side of the glass, just the brown wood floors and gray walls in the stairway. I don't care if the colors aren't true. What I'm worried about is, when you are looking at the glass at a sharp angle, if you will see a band of green glass rather than seeing what is on the other side of the glass. Picture tinted windows on a car. When you look directly at them you can see through them more clearly. But if you look at a sharp angle, you just see the tint and don't clearly see through to the other side (depending on how dark the tint is). This is what I worry about -- as you approach and enter the stairs, will regular 1/2" glass look like a translucent wall of green or will it still be clear? (I know the edges will be green, I'm not talking about that.) I don't want to spend more for the low iron but in the big scheme of things it's not a ton of money so I can justify it if it will make a difference.

As far as your question on if it would be a problem when selling the home, it shouldn't IF it matches the style of your home. If, however, your home is not otherwise modern/industrial, this stair railing won't match in style and could cause an issue when selling.