The low cost is around $40 an hour for an apprentice carpenter doing rough carpentry work, while the high cost is $200 for a master carpenter doing finish work. Time to start raising prices. The average costs per hour for commercial carpenters is typically between $50 and $75 per hour per person working. and that doesn't include the lockset installation and only if the door is waiting for me at the jobsite. They aren't paying more even if you bled for it. *Ralph, Gotta start somewhere. man hours.I personally don't know what to charge for something like this. It generally costs more to replace trim rather than install trim in a new location since you'll need to pay the cost of removing the old trim in addition to installing the new trim. Work has been kinda hard to obtain as the good old boy system reigns here. // ]]> Thats how much a legitimate, self-employed finish carpenter (or pretty much any other home-improvement tradesman) has to earn each day, five days a week, without fail for an entire year (no vacations or sick days), to make a mere $35,000.00 a year. The cost per square foot generally ranges from $4 to $10 per foot. Thanks, Tags: None Shawn Prentice Veteran Contributor Trim can work wonders to elevate most interiors, no matter your style sensibilities, and comes in a wide variety of styles, finishes, and materials. The average cost of rough carpentry per hour is $40 to $60. They don't need it. This arc template is cut out of mdf. //