Here's step by step instructions on how to build a Barrel Train out of 55 gallon drums using custom square tube frames and harbor freight tire/wheels. I build two styles of seating, one is a "single" car and the other is a "double" or tandem setup. In reality two younger kids (3-5 yr old) could fit side by side in a single car. I plan to make 6 total train cars to pull behind my ATV.

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