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.
Triple 2x10 beam is obviously not a one solid piece of lumber ...these are 12' or 14' foot pieces that were sistered in place ,on the site ,with the current bearing points in mind. In other words joints are placed right above the current columns overhanging the each side of the column for about 16-24 inches.