break away panels , devices and methods of using the breakaway panels with grid scored patterns for fire extinguisher cabinets which can be made for small , mid - size and large size fire extinguisher cabinets , and easily resized when needed . three novel panels each having novel vertical and horizontal scored lines running throughout the panels and be located on the inside surface of the installed panels . an installer can easily break off upper and / or lower and / or side edges of the panels in order to resize the panel to fit almost any size fire extinguisher cabinet . the scoring lines can be accomplished by a router . alternatively , the entire panel and the scored lines can be formed from injection molding .