Maximum hole size in a steel stud is

Maximum hole size in a steel stud is

• A. 1/2 inch
• B. 3/4 inch
• C. 1 inch
• D. 1 1/2 inch

Answer: (D)

Holes in steel studs are limited to preserve the stud’s strength. The rule is that the hole diameter cannot exceed 60% of the stud’s width. For common interior steel studs, about 2 1/2 inches wide, that means the largest hole you can bore is 1 1/2 inches. This keeps enough material around the opening to maintain structural performance while still letting you run wires. If you need a larger opening, you’d need a different framing approach or additional reinforcement. Holes should be centered and kept away from edges to avoid weakening critical areas.

Holes in steel studs are limited to preserve the stud’s strength. The rule is that the hole diameter cannot exceed 60% of the stud’s width. For common interior steel studs, about 2 1/2 inches wide, that means the largest hole you can bore is 1 1/2 inches. This keeps enough material around the opening to maintain structural performance while still letting you run wires. If you need a larger opening, you’d need a different framing approach or additional reinforcement. Holes should be centered and kept away from edges to avoid weakening critical areas.