SigmaDek is the premier, fully engineered and tested to 2 1/2 times building code strength, deck system. Every component within our product line is designed with safety, strength and longevity which allows us to offer an industry unique, lifetime warranty. Our company is dedicated to the goal of ending dangerous and deadly deck collapses. Our products cannot degrade due to environmental factors and are designed and tested to over perform what building codes require by two and a half times. SigmaDek is safe, strong and sustainable, and will be for as long as you own it.