Specifications include, but are not limited to: a. Steel Sheet & Post Open Top Walking Floor Transfer Trailer (Equal to: Wilkens Industries Model 53135SPO) b. Overall interior dimensions (approximate): L: 53’ H: 9’ W: 8’ Volume capacity: 135 cubic yards c. Sides sheets: 10 gauge 100,000 pound yield strength steel, fully welded seams d. Posts: 12 gauge 50,000 pound yield strength steel on 17” centers, 90 degree leg, fully welded placed vertical on the outside of side wall sheets. Posts must run down the outside of the bottom rail. Posts that sit on top of the bottom rail are not accepted. e. Bulkhead: 10 gauge 100,000 pound yield strength steel. Posts: 12 gauge 50,000 pound yield strength steel. Three (3) vertical posts. One (1) inside horizontal brace.