NASCLA General Contractor Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

How much larger should column footing holes be than the columns they support?

2 inches

4 inches

The appropriate size for column footing holes is critical for ensuring adequate support and stability for columns in construction. A typical practice is to have the footing hole be significantly larger than the column itself to ensure proper load distribution and to provide enough space for concrete placement around the column. In this instance, a 4-inch larger footing diameter than the column is desirable. This ensures that there is sufficient concrete surrounding the column to help resist shear forces and other loads that the structure may encounter. It also facilitates proper installation and helps prevent issues related to settling and shifting during the life of the structure. Adequate spacing allows the concrete to cure well and provides a robust foundation, improving the overall safety and durability of the construction.

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6 inches

8 inches

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