The XL Joinery White Primed Easi Frame Internal Doors System. Slim-line contemporary, affordable frames. The Easi-Frame system offers a flexible choice to help make the most of any living space. A room divider for any scenario can be formed with the numerous configurations available within the range. This system is designed to work with standard XL internal white primed doors helping to create a harmonious look throughout any home. This door range includes a head, 2no jambs and 2no mullions.