Selling a used trench box can present certain challenges. If the box has been damaged and repaired, it might need to be re-certified. Additionally, after years of use the trench box original certification sheet is often nowhere to be found. Without the certification sheet, the trench box is essentially worthless. Or, worth only the price of scrap metal. Depending on the condition of the trench box, the manufacturer might be willing to issue a re-certification. With OSHA fines easily reaching into the ten's of thousands of dollars, not having the certification sheet quickly becomes an important issue.
