Freidrich is working with the operations manager to determine what the standard material cost is for a spice chest. He has watched the process from start to finish and taken detailed notes on what material is used. The easiest material to measure is the wood. Each chest uses 5 board feet and produces 1.5 feet of scrap. He is not sure what to do with the scrap that is produced; the company cannot buy the boards in any other dimensions. What amount of materials should be included in the standard for material costs?