How To Slope A Floor For A Drain

For household sinks the drain pipe diameter is often either 1 5 or 2.

How to slope a floor for a drain.

We could find no reference to recommended slopes when trench drains are used in a floor. Drain pipe slope calculator. When installing a floor drain on most indoor floor surfaces it is important to slope the floor slightly so that water will flow toward the drain efficiently. To determine the proper slope measure from the drain to each wall and figure a quarter inch of slope per foot of length.

Mix up some concrete mix in the mixer. To determine the slope multiply the slope by the length of the line in this case 1 4 by 15. How to use the calculator. The following diagram lays out the different terms that are used in the calculator.

First figure out the diameter of the pipe you are working with. Mark this outer height mark along the wall with a pencil. Toilet waste lines are often 3 or 4. A sloped floor s main purpose is to make it easier for the water to drain.

If the wall is 3 feet from the drain the cement should rise by 3 4 inches as it goes from the drain to the wall starting at the half inch depth around the drain for a total height of 1 1 4 inches at the wall. Slope flooring is highly recommended for rooms that often have water flowing like bathrooms garages and gardens. If there s a noticeable slope to the floor leading into the drain make sure to use smaller floor tile four inches across or less so you can more easily follow those contours. Here is an example.

The recommended slope for flat roofs is usually 1 1 8 inch per foot or 2 1 4 inch per foot according to the professional handbook of building construction published by john wiley sons new york. For example a floor that extends 4 feet away from the drain should have 1 inch of overall slope. A slight slope does a lot of help in ensuring that puddles of water won t form everywhere. Step 1 set a piece of transparent paper over the drain.

Too much slope will create a poor feel to the floor and cause the unsettling sensation of the room being crooked.