[jbean8510]

Hello all i need help. I have already ripped off the carpet on the stairs, which i will be doing in hardwood. Currently, the tops had a 1" thick particle board with some kind of cheap looking plywood behind them. The problem is that the overhang is 1.5". I know most people cut the tread off flush, but the problem is that then my tread depth becomes 9". I may get a little more with the new bullnose stair edge but I will still be way short. What can I do other than adding more and more to each stair case as I go down?

I attached a link for the photo to help get a better picture below.

 

[joecaption]

Treads should never be cut off flush, 1-1/4 is the normal overhang.
Why not remove what there now and use normal, 5/4 treads?

 

[XY SOLVER]

If I'm understanding this correctly, Your doing your stairs in hardwood and you have existing particle board treads... Gotta go! rip off all that MDF and use either prefab red/white oak stair treads/risers or if your going to use an exotic species replace MDF with 5/4 plywood.
You're going to need to glue your new wood to the stairs and MDF is not suitable

 

[carpdad]

Maybe the stringer treads were cut short? If all treads have 1.5" nose, and if replace boards also give same nose, you can add 1/2" finish ply to the riser faces and end up with normal 1" nose. 1/4" ply if longer nose looks better. You can end up with same by using 1/2 " 1/4round molding under the nose.