Garage Floor Drain Pitch

A smooth accurate slope 1 8 per foot will drain fine.

Garage floor drain pitch.

Everything i ve read says slope it 1 8 to 1 4 inch per foot toward the garage door. Calculate your slope from there to the outer edge of your room. 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. First figure out the diameter of the pipe you are working with.

For household sinks the drain pipe diameter is often either 1 5 or 2. The following diagram lays out the different terms that are used in the calculator. How to use the calculator. Hi hal depends on how good your finishing technique is.

Drain pipe slope calculator. Without a drain water just puddles and sits on the floor until it evaporates or is wiped up. 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. 7 inches sounds like too much both visually and from a walkability standpoint so the most i m going to consider is 3 5.

If you work like me 1 4 per foot is a better rate to aim for. Measure the height of the drain with the tape measure. Here are some key facts about garage floor drains. When the concrete floor is pitched to a floor drain all the water runs into the drain keeping the floor dry.

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. The floor drain controls the flow of water preventing damage and unnecessary dirt buildup. Getting ready to pour a garage floor slab. Toilet waste lines are often 3 or 4.

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