WRAP's The Net Waste Tool has been adapted to help determine the percentage of recycled content in a new building. The toolkit also identifies the ten largest opportunities to increase the overall use of recycled material in the building. The toolkit can be used at an early stage in the development process to estimate the likely level of recycled content in an outline design / specification. It can also be used throughout the development process, ultimately enabling a user to demonstrate how a project achieves a specific level of recycled content.