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2. Door - Wikipedia

   en.wikipedia.org/wiki/Door

   Steel doors are another major type of residential front doors; most of them come with a polyurethane or other type of foam insulation core – a critical factor in a building's overall comfort and efficiency. Steel doors mostly in default comes along with frame and lock system, which is a high cost efficiency factor compared to wooden doors.

3. Garage door - Wikipedia

   en.wikipedia.org/wiki/Garage_door

   Sectional-type steel with exterior cladding overhead garage doors in the style of old carriage house doors. A common material for a new garage door is a steel sheet formed or stamped to look like a raised panel wooden door. Steel doors are available in uninsulated, insulated, and a three-layer door, also known as a sandwich-style door.

4. Roller shutter - Wikipedia

   en.wikipedia.org/wiki/Roller_shutter

   Built-on roller shutter door Describes the type where the roller shutter box is fixed to the exterior of the building facade. Built-in roller shutter doors Where the roller shutter box is built into the lintel above the window. Integrated roller shutter A roller shutter and window combined as a single unit. Roller shutter with tilting louvres

5. Door security - Wikipedia

   en.wikipedia.org/wiki/Door_security

   A broad range door manufacturer, Premdor (now Masonite) once stated in one of its 1990s brochures entitled "Premdor Entry Systems" page 6 that "The results of tests were overwhelming, Steel edged doors outperform wood-edged doors by a ratio of 7 to 1. When you consider the practically two-thirds of all illegal entries were made through doors...

6. Door breaching - Wikipedia

   en.wikipedia.org/wiki/Door_breaching

   This can be accomplished by calculating the net explosive weight (NEW) which is the equivalent weight of TNT that would be required to effect entry through various obstacles like reinforced concrete, plywood of various thicknesses, steel doors of various thicknesses, etc. [27] The net explosive weights of commonly used explosives is recorded so ...

7. Texas wants to buy surplus border wall parts but U.S ... - AOL

   www.aol.com/texas-wants-buy-surplus-border...

   Texas Lt. Gov. Dan Patrick said U.S.-owned border wall materials, which were available for sale, were pulled from an Arizona auction at the government's request. The Lonestar State had shown ...