Alabama Contractors License Practice Exam

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Study for the Alabama Contractors License Test. Prepare with quizzes featuring flashcards and multiple-choice questions, each supported by hints and explanations. Equip yourself for exam success!

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On a steel wall, what is the minimum thickness for OSB structural sheathing materials?

(3/8)
(7/16)
(3/4)
(1/2)

The correct answer is: (7/16)

The minimum thickness for oriented strand board (OSB) structural sheathing materials on steel walls is 7/16 inches. This thickness is specified in building codes and industry standards to ensure the structural integrity and load-bearing capacity of the sheathing when applied to steel framing. Using OSB that is too thin could compromise the structural performance, leading to issues such as buckling or insufficient lateral support. 7/16 inches strikes the right balance between strength and weight, making it suitable for typical construction applications. It also provides adequate nailing surface for attaching siding and other exterior finishes. Larger thicknesses, such as 3/4 inches, may provide additional strength but are often unnecessary and could increase overall costs unnecessarily. Meanwhile, 3/8 inches or 1/2 inches do not meet the minimum requirements set forth by building codes for structural applications. This understanding is essential for compliance and safety in construction practices.