I need to make some repairs to our dock... The dock extends over fresh-water (not salt) and I suspect I should use something more than just generic 2x4's or even pressure treated wood from home depot.

But I'm not nearly an expert at this stuff, so if you have suggestions of what I should look for, I'd appreciate the input not just on what to buy but who is a good retailer?

Thx!
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The charm of fishing is that it is the pursuit of what is elusive but attainable, a perpetual series of occasions for hope. -John Buchan