Thicken 18 x 18 metal access door for drywall frame size 19 1/5'', access panel size 17 2/5'', inset depth 1 3/5'', Access panel 18'' x 18'' .We have upgraded the thickness of the traditional metal panel, thickening the panel to 1mm, solving the problem that the panel is easily twisted and deformed or even ruptured in the process of use. Thicken ceiling access panel for drywall 18*18 made of aluminum with galvanized steel. Access door for drywall has rust resistant galvannealed steel to keep your interior access door from rusting and deterioration. Large drywall door panels use advanced baking paint technology, in the production process to achieve a uniform surface of the baking paint layer, color and Luster, these attic door panels can be installed as is, but also according to the overall decoration style of the family for personalized spraying, so that your family is more warm and welcoming. Suitable for attic doors, drywall panels, metal access doors, crawl space access doors. Attic access door seamless welding technology, Drywall access door outer frame is equipped with two stiffeners to enhance the stability of the outer frame. Strong and durable, smooth surface, no unevenness, no sharp corners, novel and beautiful.