Question 14

The minimum allowable slope of the finished floor for a shower is 1/4 inch per foot.

A slope of 1/4 inch per foot is the standard minimum requirement to ensure proper drainage in a shower area, preventing water accumulation and reducing the risk of slips.

A) 1/16 inch per foot

This option is insufficient for shower drainage as it does not meet the necessary slope to encourage water flow toward the drain. Such a minimal slope could lead to water pooling and create a hazardous environment.

B) 1/8 inch per foot

While 1/8 inch per foot is a better slope than 1/16 inch, it still falls short of the recommended minimum for shower floors. This slope may not effectively direct water towards the drain, potentially resulting in standing water.

C) 1/4 inch per foot

This is the correct option as it is the established minimum slope necessary for effective water drainage in shower installations. A slope of 1/4 inch per foot ensures that water flows efficiently towards the drain, minimizing the risk of water accumulation.

D) 1/2 inch per foot

Although a slope of 1/2 inch per foot would effectively direct water, it exceeds the minimum requirement. Such a steep slope could lead to discomfort while standing in the shower and may not be necessary for adequate drainage.

Conclusion

The minimum allowable slope of 1/4 inch per foot is essential for proper drainage in a shower, ensuring safety and functionality. Options A and B do not provide sufficient slope, while D, although effective, is unnecessarily steep. Thus, C is the only option that meets the required standards.