Abstract: A method for creating a customized apparatus for holding a door closed comprises comparing a physical door hydraulic piston to two or more diagrammatic configurations to determine which of two or more computer aided design templates to use in fabrication. A straight arm of the physical door hydraulic piston is measured to produce a measurement M1. A user measures from the outside edge of the straight arm to an outside edge of an angled arm of the hydraulic piston to produce a measurement M2. A user measures a width of a pivot point of the hydraulic piston to produce a measurement M3. A user measures the collective height of the straight arm and the angled arm to produce a measurement M4. A user selects one of the templates from the two or more templates based on the comparing step. A CAD operator enters measurements M1, M2, M3 and M4 into the selected template to produce fabrication specifications. Based on the fabrication specifications, a customized apparatus is fabricated for holding a door closed.

Abstract: An apparatus holds a door closed comprising: a top panel, a left wall and a right wall. A flap is attached to the left wall opposite the top panel and folded under the apparatus. A flap is attached to the right wall opposite the top panel and folded under the apparatus. The apparatus contains a front end, a back end and an opening at the front end that has a larger cross section than a cross section of the back end thereby providing for a tapered shape of the apparatus overall, such that the apparatus is configured to fit over two hinged arms of a door closing system, preventing the arms from articulating open to prevent the door from opening.