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.
* Accounts for 1/2 of truss weight 1.9 Rock Wool, 1 .2 INSULATION Glass Wool, 1 .3 Alpol .1 2x4 Bottom Chord* .7 2x6 Bottom Chord* 1.1 2x8 Bottom Chord* 1.5 2x10 Bottom Chord* 1.9 2x12 Bottom Chord* 2.2 2x4 Webs and Plates** .8 2x6 Webs and Plates** 1.3 Roof Truss or Ceiling joists at 24â O.C