Garage Floor Drain Pitch

You need 1 4 inch of slope for every linear feet of floor space.

Garage floor drain pitch.

Getting ready to pour a garage floor slab. The following diagram lays out the different terms that are used in the calculator. The floor drain controls the flow of water preventing damage and unnecessary dirt buildup. First figure out the diameter of the pipe you are working with.

We could find no reference to recommended slopes when trench drains are used in a floor. Toilet waste lines are often 3 or 4. How to use the calculator. 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.

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. Yes the pipe needs some pitch also. When the concrete floor is pitched to a floor drain all the water runs into the drain keeping the floor dry. 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. Everything i ve read says slope it 1 8 to 1 4 inch per foot toward the garage door. 7 inches sounds like too much both visually and from a walkability standpoint so the most i m going to consider is 3 5. For household sinks the drain pipe diameter is often either 1 5 or 2.

If you work like me 1 4 per foot is a better rate to aim for. A smooth accurate slope 1 8 per foot will drain fine. Hi hal depends on how good your finishing technique is. Without a drain water just puddles and sits on the floor until it evaporates or is wiped up.

Calculate your slope from there to the outer edge of your room.