What is the inch dia covered by a welder for diff sizes of pipes and how you calculate no of welders required for welding a structure?

The inch diameter covered by a welder varies based on their expertise and the type of welding process used, but typically, a skilled welder can handle 2 to 6 inches for pipe welding. To calculate the number of welders required for welding a structure, first determine the total length of welds needed, then estimate the welding speed (in inches per hour) for the specific welder and process. Divide the total weld length by the welding speed to find the total man-hours required, and then divide by the available work hours to get the number of welders needed. Always consider factors such as work shifts, breaks, and the complexity of the welds when making your calculation.