I work for a major precast/prestressed manufacturer. Our products are always designed, manufactured and installed for each individual project. However, we sometimes have a few units sent to stockpile for various reasons and may never be used for any future project. Can these products be used for a future project and count as Material Reuse? We have been approached by a General Contractor working on a project pursuing LEED certification and they want to cover an existing pool (that will be used as a grey water cistern) with a few pieces of our stockpiled hollowcore. They plan on counting the plank toward Material Reuse credit. Since the material is not from another 'site' and was not installed in a previous structure I'm not sure if this qualifies as material reuse.