The word “slope” in the phrase “concrete slab slope” is sometimes replaced by the words, “gradient”, “fall” or “pitch”. Its measure may be denoted as an angle (degrees) or decrease in height over a certain length. Basically, concrete slab slope refers to the gradual incline or decline in the surface of the concrete slab.

The standard formula for the slope of a concrete patio is a 1/4-inch drop for every foot of length. If the slope is more gradual than this, you may run into trouble getting water to run off properly. Slopes that are steeper than this are fine, but you may also wish to consider the ease of mobility on a concrete patio that is too steep.

A 4-foot wide concrete walkway that runs parallel to a house should drop one inch away from the home. If it’s running perpendicular to a structure, follow the one-quarter inch pitch for every foot of length rule. This will ensure water isn’t an unwelcome guest at your front door.