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Numbers and Layout

Driveway Slope and Drainage Basics

Key takeaways

  • A common slope is about one quarter inch per foot
  • Water should run away from the house
  • Too much slope is hard on cars
  • The Slope Finder draws the cross-section

Good concrete sheds water. The shape of the slab is the reason.

How much slope

A common guide is about one quarter inch of drop for every foot, though every site is different.

Which way

Away from the house, toward a lawn, a drain or the street, depending on the site and the local rules.

Not too much

Too steep a slope is hard on car bumpers and feet.

See it

The Slope Finder draws a cross-section and shows how far a slab drops.

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Questions about your own property? Call or text 800-224-9245, or use the estimate form below.

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