How strong is 2x4?
Category:
business and finance
construction industry
A 10 foot long 2x4 carrying a uniform load of 40 pounds per foot (400 lbs total load) will have a maximum bending moment at the center of the span of 1000 ft-lbs. The same 10 foot long 2x4 with a point load of 400 lbs at the center will experience a maximum bending moment of 500 ft-lbs.
In this regard, how much weight can a 2x4 hold?
Assuming that the load is square and there is no wind, the average 8 feet 2x4 could handle around 1,000 pounds vertically. Of course, it's wise not to push the material up to its limit, use brace and alike to secure the 2x4s whenever it's needed.
Beside this, are 2 2x4 as strong as a 4x4?
Granted 4x4s when used vertically are still rather strong for most applications, but should never be used horizontally for something structural. Also remember and remind yourself (repeatedly, if need be ) that two 2x4 is NOT dimensionally the same as a 4x4. In this case, two 2x does NOT equal a 4x.
The ceiling joists are 2X4s on 16 inch centers that span the 10 plus feet.