You are making a 14" stub-up in 1" RMC and the bender deduct is listed as 10". Where do you make your first mark?

To determine the correct measurement for making the first mark when creating a 14-inch stub-up with a 10-inch bender deduct, it is essential to understand the concept of bender deduction and how it influences the length of the conduit needed to achieve the desired stub-up height.

The stub-up height is the vertical portion that will extend above the surface, which in this case is specified as 14 inches. The bender deduct means that this length will not be included when bending the conduit; accordingly, you need to deduct the bender's measurement from the desired stub-up height.

In this scenario, the deduction of 10 inches must be subtracted from the desired 14 inches for the stub-up. This means that you will plan for a total conduit length of 14 inches plus 10 inches (the bender deduct), resulting in 24 inches of conduit required.

When marking the conduit, the first mark for the bend must be positioned at the distance that accounts for the total length, plus the length needed to account for the stub-up and the bender deduct at the same time. Therefore, the correct point to make your first mark is 4 inches from the end of the conduit. This will ensure that when the conduit