Magnum Sheet Metal Inc. is a family owned and operated business that was started in 1976 with the goals of providing quality custom sheet metal fabrication products. William Murphy Sr. started the business along with his son who was fresh out of Journeyman school. The company is now run by William Murphy, Jr. and his son Kevin, a third generation Journeyman, is running the welding dept. We serve Miami, Florida and all surrounding areas. We work with homeowners, business owners, interior decorators, designers along with kitchen and bath companies.