This occupation is included in the larger group of pipelayingfitters, pipefitters, and plumbers.. The median wage for this groupis $4,781 per month ($27.58 per hour). Half of all of these workersearn between $3,602 and $5,651 per month ($20.78 and $32.60per hour).
When supporting joists that span 12 feet with no overhang beyond the beam, a double ply beam can span in feet a value equal to its depth in inches. A double 2x12 beam can span 12 feet; a (2) 2x10 can span 10 feet and so on.
Looking at the table below, we see that 2x6 floor joists can be cantilevered up to 2 feet and 6 inches (2'-6) when the joists are spaced 16 apart.The table also indicates that we need to keep the length of the joist that is not cantilevered between 4'-0 and 6'-6.his refers to the fact that when only the cantilevered portion of the joist or beam is under load, the opposite end wants to lift up. It's the same reaction that occurs when you sit on a see-saw. The opposite end wants to lift up. The impact of uplift is an over rated concern.