Calculate foam fill areas

[cmorgan]

I have an urgent need to calculate the foam fill inbetween two slabs on different planes. Also, the foam will come in 4x8' pieces. I am fairly good at family creation but am a little perplexed as how to start this one.

[ccollins]

Create special floors with the proper thickness and insulation material, and then create a Material Takeoff Schedule or just schedule the floor area.