Guidelines for Greener Building Practices. Custom Component Company knows how ecologically wise trusses can be, we've been producing custom truss and wall system solutions for the Milwaukee to Chicago corridor since 1961. Wood and Steel trusses and wall systems: carefully engineered, precisely crafted, utilizing the latest in technology in conjunction with many years of practical experience. Trusses are not only strong, they are ecologically wise and environmentally friendly. Check out our Projects page, it should give you an idea of where we have been and what we are capable of and then give us a call. 262-632-8840