The number of calories a carpenter burns per hour can vary depending on various factors such as the intensity of their work, body weight, and efficiency of movement. On average, however, a moderately active carpenter can burn around 250 to 350 calories per hour. This estimate takes into account the physical demands of tasks like sawing, hammering, and lifting heavy materials during the course of their work. It is important to note that individual differences can cause variations in calorie expenditure.