The Babcock-Davis High Security Access Door provides access through openings in vertical or horizontal surfaces and is manufactured with detention-grade materials. This access door is engineered with a surface mount butt joint hinge on the surface of the door to prevent unwanted access. Features High Security Secure Hinges Custom Sizing Specifications Model BHS Door 10-gauge Steel Frame 2 inch by 3 inches by 3/16-inch Steel Angle Size Min: 12 inches by 12 inchesMax: 48 inches by 54 inches Installation Wall or Ceiling Flange Exposed Hinge Heavy Duty Butt, Surface Mounted Finish White Powder Coat Warranty 1 year Options Latches, Gaskets, Anchors and Materials Order Guide BASE LATCH WIDTH X LENGTH OPTIONS BHS X D - Detention Lock PrepM - Mortise Lock Prep (1-1/8")S - Security Screws Standard Sizes (in.)12 x 12 24 x 2416 x 16 24 x 36*18 x 18 24 x 40*22 x 30 24 x 48* G - GasketingM - Masonry AnchorsS - Stainless Steel, Type 304 *Vertical openings only.Rough opening is door size + 3/4 inch minimum.Additional sizes available, call for more information.