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What is the minimum length of a structural fiberboard braced wall panel on a 10-foot wall with an 85% opening clear height?
24 inches
30 inches
40 inches
60 inches
The correct answer is: 30 inches
To determine the minimum length of a structural fiberboard braced wall panel on a 10-foot wall with an 85% opening clear height, we need to consider the effective height of the wall that will be braced. First, we calculate the clear height of the openings based on the wall's total height and the given percentage. A 10-foot wall (which is 120 inches) with an 85% opening clear height would have a height of openings calculated as: \[ Height of Openings = 10 \, \text{feet} \times 0.85 = 8.5 \, \text{feet} = 102 \, \text{inches} \] Now, to establish the minimum length of the structural fiberboard braced wall panel required, it is important to refer to construction codes or engineering guidelines which typically state that the length of the bracing panels must be a specific fraction of the wall height that remains after accounting for openings. In this case, the minimum requirement for the braced wall length is often set at 30% of the total wall height or its equivalent. The total height is 120 inches, and thus calculating 30% would yield: \[ Minimum Length