Red Seal Tilesetter Practice Exam

What is the recommended slope for shower floors to ensure proper drainage?

1. 1/8 inch per foot

2. 1/4 inch per foot

3. 1/2 inch per foot

4. 3/4 inch per foot

The correct answer is: 1/4 inch per foot

The recommended slope for shower floors is typically 1/4 inch per foot. This slope is essential for proper drainage, ensuring that water flows efficiently toward the drain and prevents pooling that could lead to water damage or mold growth. A slope of 1/4 inch per foot is considered adequate to facilitate drainage while still providing a comfortable and usable surface for users. Choosing a steeper slope, such as 1/2 inch or 3/4 inch per foot, can make the surface feel unbalanced and may lead to discomfort when standing. Additionally, a slope that is too shallow, like 1/8 inch per foot, may not provide sufficient drainage, increasing the risk of water accumulation in the shower area. Thus, the 1/4 inch per foot slope strikes a balance between effective drainage and user comfort.