Aluminum frame structures built on a concrete footer/slab, pavers, or tile. These structures have screen walls and a screen roof. There are 5 different roof designs and 4 different wall designs. New construction and any modifications to the structure requires engineering, permitting, and a survey (modifications such as adding a picture window do not require a survey unless the foot print of the enclosure changes). You can also add kickplate coil/sheet metal to the lower part of the enclosure.