How To Slope Concrete For A Floor Drain

Mix up some concrete mix in the mixer.

How to slope concrete for a floor drain.

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. If the slab elevation at the trench. I show you how we pour a 3 bay garage concrete floor that has 3 trench drains one for each bay. Whether you are pouring a concrete floor for your shower or for another area such as your garage sloping a concrete floor directs water away from the higher areas of the floor.

It is not a difficult project to complete but does require a certain amount of precision and accuracy in order to obtain the best possible results. Too much slope will create a poor feel to the floor and cause the unsettling sensation of the room being crooked. For example a floor that extends 4 feet away from the drain should have 1 inch of overall slope. As we pour the concrete we pitch each bay to the trench dra.

Aci 117 90 standard specifications for tolerances for concrete construction and materials gives a level alignment tolerance of 3 4 inch for top of slab elevation of slabs on grade.