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.
You can also reduce your spacing to 12o/c and now a 2x6 gets you 15 again (under certain species). If I remember correctly the deflection is in inches say L/^=180 THEN you can deflect no more than 1 in a 180 span. For floors its double say 1 in 360 span. Thats it now you know how.ou can also reduce your spacing to 12o/c and now a 2x6 gets you 15 again (under certain species). If I remember correctly the deflection is in inches say L/^=180 THEN you can deflect no more than 1 in a 180 span. For floors its double say 1 in 360 span. Thats it now you know how.