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| Your stringers (sills) are too small. Mine are 8 x 8 nominal. I'm also rebuilding one, the new sills are still at the sawmill. A friend suggested covering the tops of the sills with used roofing sheet metal, if the wagons sit outside unused 9 months of the year; keeps rain/snow from standing and rotting them out again.
Building a safe wagon should be the first consideration. Don't nail -- they'll come loose and you'll trip on the raised nailhead. I use galvanized lag screws and washers, countersunk in for a flat surface. Use a 2x4 on both sides, bolted on the boards with carriage bolts. It will keep the ends of the boards even and not flexing, spread the load and you can feel the edge of the wagon with it without looking (can't see your feet if carrying a bale, avoid falling off the wagon.)
Are you towing the wagon right behind the baler? Do you want the chute to overlap the wagon or come out short? If the chute goes right over the wagon, bevel the front edge of the top to make the chute slide easier should it touch. Round off the front edges of the corners of the aforementioned 2x4's so the chute can't snag them on low corners when the chute touches.
My racks are bolted down on all four corners --- it seems to flex OK. Avoid surprises should inexperienced help misbalance the wagon if they unloaded all one side first. | |
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