Hello all! I have a property divided in half by a creek. There is currently a 20' bridge in-place with concrete footings at each end with two 6x12 timbers for the span. The timbers are 64 inches apart and the current deck is made from 2x6s. I need to replace the 2x6s as they've had a good life and flex under the weight my my little JD X330. I'm wondering if replacement 2x6 boards will work or if I'll need to upgrade to 4x6s to support the live weight of a compact tractor.
Thanks for any and all input.
Thanks for any and all input.