In order to create an interactive schedule that allows me to do rough cost estimating, I need to be able to evaluate expressions for properties assigned to building materials. I am currently able to assign a cost per sqft and show the surface area of...

Hi everyone, I'm trying to create a schedule that will calculate costs based on the square footage of building materials used. I want a set cost assigned to each material * the area of each material = the cost per material. I cannot figure out what t...