The 2006 USG Sheetrock 400 was a NASCAR Nextel Cup Series race held on July 9, 2006, at Chicagoland Speedway in Joliet, Illinois. The race was the 18th of the 2006 NASCAR Nextel Cup Series season. Jeff Burton of Richard Childress Racing won the pole position with a lap speed of 181.647 mph (292.333 km/h), his second pole of 2006 along with the Daytona 500, marking the first time in his career that he won two poles in the same year. Roush Racing's Matt Kenseth led the most laps, while Jeff Gordon of Hendrick Motorsports won the race on a green-white-checker finish, which extended the race from 267 laps to 270.