The GFRC Construction Calculator makes it easy to estimate your material cost and weight of your GFRC (Glass Fiber Reinforced Concrete) projects. In three easy steps you will find out the cost per square foot of the project and how much the GFRC is going to weigh. First will will pick from a list how thick the GFRC will be for your project. Then simply type in the square footage of the project. Then click the calculate button and will you have the square foot price and weight of the material.