Trapezoid E is an outdoor 1975 painted aluminum sculpture by Robert Maki, installed outside the Federal Building and U.S. Courthouse in Eugene, Oregon, in the United States. The abstract work measures 12 feet (3.7 m) x 10 feet (3.0 m) x 15 feet (4.6 m). It was commissioned, and is maintained, by the General Services Administration's Art-in-Architecture Program.