Structural Panels Inc (SPI) is an all-Canadian manufacturer of high quality, steel-skinned insulated sandwich panels that are designed for coolers, freezers, walls, partitions, dividers, ceilings, and value-added projects. Our products have been successfully integrated into countless commercial, industrial and residential projects across the country and overseas. Available in a wide range of core thicknesses and colours, our custom-made Rockwall™ and Isowall® panels are particularly well-suited for industries requiring clean rooms, fire resistance (1, 2 & 3 hours), controlled temperature rooms and/or high wash-down areas. We also offer a complete range of associated and accessory materials to complement our products and support a complete installation.