West Virginia Contractors License Practice Exam

What is the shear value in pounds per square foot for 1/2 inch gypsum board with framing spaced at 16" OC?

1. 60

2. 90

3. 120

4. 150

The correct answer is: 90

The shear value for 1/2 inch gypsum board with framing spaced at 16 inches on center is established based on standard design values specified by building codes and guidelines, particularly those issued by organizations like the Gypsum Association and the American Wood Council. In this scenario, a shear wall is effectively created when gypsum board is used, which helps resist lateral loads due to wind or seismic forces. For 1/2 inch gypsum board, the typical shear value is recognized to be 90 pounds per square foot when the framing is properly spaced at 16 inches on center. This value reflects the board's capacity to withstand shear stress, providing essential structural integrity in building designs, especially in areas prone to lateral forces. The specification of 16 inches oc is a standard framing practice that helps optimize the shear resistance of the wall assembly. This shear value becomes particularly important in ensuring compliance with building safety regulations and codes, aiding engineers and contractors in delivering sound construction practices. Understanding these values allows for safer and more effective design choices in residential and commercial construction projects.