Garage Floor Drain Pitch

Having a drain installed with the correct pitch to the floor allows water dripping off your car or from rain falling outside especially important in particularly rainy areas to flow.

Garage floor drain pitch.

You need 1 4 inch of slope for every linear feet of floor space. Here are some key facts about garage floor drains. A garage drain is also great for rinsing and cleaning the garage floor so all the dirty water doesn t end up on the driveway. 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. The garage is 28 ft deep so 1 8 to 1 4 inches per foot means the slab shoub be 3 5 to 7 inches higher at the end opposite the door. Getting ready to pour a garage floor slab. Everything i ve read says slope it 1 8 to 1 4 inch per foot toward the garage door.

Yes the pipe needs some pitch also. Without a drain water just puddles and sits on the floor until it evaporates or is wiped up. For household sinks the drain pipe diameter is often either 1 5 or 2. 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.

Drain pipe slope calculator. Measure the height of the drain with the tape measure. Toilet waste lines are often 3 or 4. 7 inches sounds like too much both visually and from a walkability standpoint so the most i m going to consider is 3 5.

A smooth accurate slope 1 8 per foot will drain fine. When the concrete floor is pitched to a floor drain all the water runs into the drain keeping the floor dry. If you work like me 1 4 per foot is a better rate to aim for. Hi hal depends on how good your finishing technique is.

How to use the calculator.