The most commonly used material for floor sheathing in a wood light- frame building is

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Quizplus · Accepted Answer

OSB panels are the most commonly used material for floor sheathing in a wood light-frame building due to their strength, durability, and relatively low cost compared to other materials such as plywood or gypsum board. High-density fiber board panels may also be used, but they are typically laminated to other materials such as gypsum board for added strength and fire resistance. 1 × 4 lumber is not typically used for floor sheathing as it does not provide adequate structural support.

The Most Commonly Used Material for Floor Sheathing in a Wood