Jan 18, 2020 · If the load is a 40 pounds one, for example, a 2x4 measuring 10 feet would have a pending of 1,000 feet pound to the maximum. On the other hand, if the same 10 feet long 2x4 holds a 400 pounds point load, it should have a bending moment that does not exceed a limit 500 feet pound. So, how much weight does a 2x4 hold exactly?