Where do you measure a kitchen peninsula from per the 2017 NEC?

B) From the connecting edge of the kitchen countertop.

C) Do not know

D) Do not care.

Answer:  A)

For many code cycles, a kitchen peninsula has been measured from the “connecting edge” which is where the peninsula countertop makes connection to the kitchen countertop. In the 2017 NEC a peninsula is now measured from the connected perpendicular wall.

This means that a receptacle installed to serve the countertop wall space can also serve as the receptacle required for the peninsula because the receptacle is located within the dimensions of the peninsula.

In the 2014 NEC, Two receptacles were required, one on the wall and one on the peninsula since the peninsula was measured from the connecting countertop edge and did not go clear to the wall. Now that the 2017 NEC requires the peninsula to be measured from the adjacent wall, the receptacle required for the peninsula can be satisfied by the one receptacle which also serves the adjacent counter.

Here is the language showing the change from 2014 to 2017 NEC

2014 NEC:

210.52(C)(3) Peninsular Countertop Spaces. At least one receptacle outlet shall be installed at each peninsular countertop space with a long dimension of 600 mm (24 in.) or greater and a short dimension of 300 mm (12 in.) or greater. A peninsular countertop is measured from the connecting edge.

2017 NEC:

210.52(C)(3) Peninsular Countertop Spaces. At least one receptacle outlet shall be installed at each peninsular countertop long dimension space with a long dimension of 600 mm (24 in.) or greater and a short dimension of 300 mm (12 in.) or greater. A peninsular countertop is measured from the connected perpendicular wall.