Mine is 2 layers of 3/4 plywood top layer is smooth forget what they call it . Been reloading on it with 2 presses for over 30 years. 4x4 legs and 2x6 frameMine will be free standing. I cant decide whether to double up on 3/4 plywood like the pic in that link or do 2x8s...or some such size. I've never built one before so there may be changes tonit in the future
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