Maximum Floor Slope

The building code requires that a garage floor be sloped towards the door but does not specify a minimum slope.

Maximum floor slope.

Nearly all will say that if a floor slopes 1 and 1 2 inches in twenty feet or more that there should be further investigation. Your figure of 1 4 per foot doesn t sound bad. 5 6 2 changes in slope between shallow and deep. Shower floor slope to efficiently drain the recommended minimum slope for a shower floor is about 4 percent or a 1 2 inch drop per every 12 inches from the shower walls to the drain.

It stands to reason that the steeper the slope then the more likely you are to slip on that slope yet one of the biggest mistakes we see is a lack of understanding that a slope on a floor requires an increase in the slip resistance value srv also know as the pendulum test value ptv. I d slope it as much as you can stand. Floor slopes shall be reasonably uniform and comply with 5 6 1 through 5 6 3. But they got one low spot right where i got out of my car.

213 cm to the point of the first slope change as shown in figure 5. When they poured my garage slab in my last house i asked em to slope it a lot. Floor testing testing on slopes. 5 6 1 the slope of the floor from the shallow end wall towards the deep area shall not exceed 1 foot in 7 feet 30 cm.

So during the winter melted snow and rain would puddle there and freeze. It is usually 1 8 to 1 4 per foot. Floors that slope 2 or 3 inches in 20 feet would be a very serious concern. Another consideration regardless of the amount of slope is whether there is structural damage in the home or only cosmetic damage.