Cast Stone Stair Treads

I have a project where the Project Architect has called out “cast stone steps with non-slip grit nosing.” I have not had any success finding a product (and hopefully guide spec) that fits the bill. The treads are shown solid, approximately 12" wide by 6" deep, and pinned/doweled to the concrete substrate. Anyone have a suggestion?

Try: http://www.stepstoneinc.com/stair-treads.php
They do a lot of custom stuff too, but I have used StepStone by the thousands for large multi-family developers and never had an issue with them

You might find some useful information on the Cast Stone Institute’s website:

http://www.caststone.org/

Another company offering treads in precast concrete or precast terrazzo is Wausau Tile’s Tectura line:

http://www.tecturadesigns.com/products/precast-concrete/treads-and-coping

I’m not aware of offerings in cast stone.

I second Nathan’s suggestion for Stepstone, although their offerings are precast and not cast stone.

It can be difficult to determine the difference between cast stone and precast, especially if the designer is looking at a small sample. We sometimes specify Concrete Collaborative (formerly Sadlerstone) for precast concrete interior stair treads.

Thank you all for the information. Looks like it will be very helpful, for my current issue as well as for general info/future reference. I spoke to the Project Architect again this morning to confirm that he really wants cast stone rather than precast. Material wise, he doesn’t have a real preference and is more concerned with aesthetics (of course).