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.
2x4 rafters/roofing question... i helped a friend build his garage's roof, kinda of uncomfortable. he says lowes told him he could use 2x4 for rafters with 1/2 inches plywood for asphalt shingles. the rafters are 18 foot long without beams or trusses (garage 28x40).he's already got the 2x4 up for rafters and it's ready for laying plywood tomorrow.i told him plywood and asphalt shingles would be too heavy. he could get his money back for the plywood and do tin roof setup instead.he rafters are 18 foot long without beams or trusses (garage 28x40). he's already got the 2x4 up for rafters and it's ready for laying plywood tomorrow. i told him plywood and asphalt shingles would be too heavy. he could get his money back for the plywood and do tin roof setup instead.