by rbeemer » Thu Mar 20, 2008 10:06 pm
Deano,
I think you can go with 2x2's but remember you will be building out over your wheels. A 5'x10' trailer is 6" on each side and 12" on the front and back if built on a 4'x8' trailer frame.
Also I would waterproof the underside with some strong stuff and any wood end pieces so that you are not rebuilding because of wood rot.
Rick
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