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.
So now you know all your criteria to follow the chart. Take your span length say 15 ft for example and you want 2 x 6 --16 o/c the max you can get for a 2 x 6 ---16 o/c is 14-4 for select doug fir you need to bump it up to a 2x8.Now you can get 18-10 for select doug fir or 15ft for #2.o now you know all your criteria to follow the chart. Take your span length say 15 ft for example and you want 2 x 6 --16 o/c the max you can get for a 2 x 6 ---16 o/c is 14-4 for select doug fir you need to bump it up to a 2x8.