Extreme Panel Technologies is a leading Structural Insulate Panels (SIPs) manufacturer located in Cottonwood, MN. For over 28 years, our family-owned business has focused on product development, advancing construction technology, and building long term relationships with our construction partners. Our panels are 100% manufactured in the United States in a clean, zero-waste, low-energy consumption facility. EPT SIPs may be used for a diversity of building types and styles, from large commercial, multi-unit, multi-family, and agricultural projects to design-centric residential and speciality applications. An additional in-house product line manufactures Heavy Duty Walk Doors for harsh environments and animal confinement structures. We are dedicated to building healthier, greener buildings for our customers and we welcome you to learn more about both our product and our team.