How much does a carpenter earn per month?

It depends on a variety of factors. Those factors are being union or non-union, skill level, years of experience, communication skills, reliability, neatness, geographic area, work supply, and so on. Wages in some areas of the U.S. may be as little as $14/hr. or as high as $75/hr. depending on these factors. That translates into a range of $2,200-$12,000 a month.