Steel-Line Colour Chart Steel Line Panel Doors Steel Line Roller Doors Steel-Line has been in operation across Australia since 1979. In 2007, Steel-Line was acquired by the private equity firm Crescent Capital who aims to build Steel-Line to be the driving force of vehicular access products and systems. Their staff are committed, passionate and customer friendly group who pride themselves on their work. They’re experts in various fields allow them to have a deep understanding of the products and services they provide, therefore enabling them to meet the individuals needs of each of their customers. Steel-Line realises that the garage door is possibly the largest part on the exterior of your house, therefore they venture to make sure that it is also the most striking. They make garage doors to suit all openings and styles of architecture. A Steel-Line door on your garage will ensure a street frontage that is not only a pleasure to come home to, but an investment to enhance the value and security of your home during the years to come.