Which calculation is used to determine the total take-off when dealing with multiple fittings?

The total take-off when dealing with multiple fittings is determined by taking the take-off for one fitting and multiplying it by the number of fittings. This method is based on the principle that each fitting contributes a specific amount to the overall length of pipe required, and by multiplying the take-off of a single fitting by the total number of fittings used in the system, you can accurately calculate the total linear footage needed.

This approach ensures that all fittings are accounted for in the calculation of materials, which is crucial for inventory management and ensuring that you have enough piping and fittings for your project. It simplifies the process by allowing for easy scaling based on the quantity of fittings installed, rather than requiring individual calculations for each fitting type or size.