A:Harlan Madsen, an electrical contractor in Bloomington, Minn., responds:

In living areas, the National Electrical Code (NEC) requires outlets on wall sections that are 24 inches or longer, so it would not be necessary to install an outlet on a column unless boxing it in created a wall space at least 24 inches long. But keep in mind that this distance can be measured around corners, and the perimeter of a 6-inch by 6-...

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