When a hard to close shipping container door disrupts workflow, operations can quickly become slower and more dangerous. Shipping container doors often become difficult to close because of rusted hinges, warped frames, damaged gaskets, and misaligned locking rods caused by years of heavy-duty use. Workers frequently attempt to solve the problem with pipes or improvised leverage bars, but these methods increase injury risks and may damage the container itself. A purpose-built tool like OPNBar offers a safer and more efficient solution for container handling professionals. Engineered for heavy