Structural Insulated Panels (SIPs) are prefabricated lightweight building units that are becoming increasingly popular as they are: - light, strong and versatile - thermally efficient and have low air leakage - able to be erected by a fast and predictable construction process A SIP consists of two high density face layers which are bonded on both sides of a low density, cellular core substrate. In most applications, SIPs are used as primary loadbearing components. This information paper gives information and advice on the design, construction and performance of the generic form of SIPs used primarily for domestic and light industrial construction. The paper also covers briefly conformity assessment, purchasing, insurance and other issues related to SIP construction. Building with SIPs and the sustainability of SIPs and related topics will be covered in a subsequent information paper. 8 pages.