Depending on the size of the project, condition of the concrete slab, and complexity of the design, the pricing of decorative concrete flooring may range between $4-$6 per square foot using existing concrete, or between $6-$10 per square foot using a concrete overlay. The important point to note here is that decorative concrete flooring almost always costs considerably less than the material it mimics (e.g., marble and other forms of natural stone); and basic applications, such as acid staining, are also usually notably less than competing traditional alternatives, such as quality carpets, ceramic, porcelain or luxury vinyl tile (installed), and hardwood or wood laminates. There is no other flooring media that provides such a high end look at such an affordable cost.
On top of this, because of the durability of decorative concrete, there are long term savings involved as well. Unlike with carpeting or tile, an acid-stained concrete floor will never need to be torn out or replaced. It will uniquely withstand both time and abuse. So beyond the initial investment, the only costs involved with a decorative or acid-stained concrete floor are for periodic maintenance. And annual maintenance costs for decorative concrete flooring in construction publications are generally estimated to be way below that necessary for traditional floor coverings, as well - about $0.17 per square foot. Our own experience is that maintenance for acid-stained concrete in the home, however, is even less than that: generally no more than $50-$100 for a floor ranging from 1,000-2,000 square feet.