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.
A 2x6 16OC is only rated. for 30 live floor load to about 11'2. A 20 foot span 16. OC need at least. a 2x10 for a 30 pound live load. For a 20 lb live load, limited storage with SYP joists 16. OC is good to. about 14.5 feet of span. This calculation includes the weight of a drywall. ceiling under the joists. 20 foot span 16. OC need at least. a 2x10 for a 30 pound live load. For a 20 lb live load, limited storage with SYP joists 16. OC is good to. about 14.5 feet of span.