I have used this tool for concrete, asphalt, and raised board walk construction work on federal and private commercial projects. It is an excellent tool for laying out and placement of ADA routes, ramps, landings, random directional surfaces, and curb ramps. 1oo% compliance can be achieved when using the sliding scale ADA safety factor sheet. The bracket with the MD Smarttool module can also be mounted on wood 2x4 screeds.