Thats correct, Its used on large concrete floors. We pour the concrete for alot of large commercial and industrial buildings. Pouring anywhere from 20,000 to 70,000 square feet at a time.dnale said:I won't steal his thunder but it's a laser screed. It's used when you need to finish your concrete VERY flat. They work fantastic in the hands a good operator but they require some serious space to get the machine in there. I have had F&B do some work for me when I worked for another GC. We now self-perform.