Yard Slope and Grade Calculator
Free foundation tool

Yard Slope and Grade Calculator

Enter a measured drop over a distance to see whether the soil slopes away from your house and how much fill it would take.

These tools give planning-level estimates from typical values. They are not quotes, designs or engineering, and results depend on your actual foundation, soil, drainage, site conditions and local rules. Only a site visit can confirm what a project needs, and we give you a written scope and price before any work begins.

How it works

Four quick steps.

  1. 01

    Set the distance

    Lay a straight board or string from the wall outward, often ten feet.

  2. 02

    Measure the drop

    Use a level and a tape to find how far the soil falls, or rises, over that distance.

  3. 03

    Enter the width

    The length of wall you want to correct.

  4. 04

    Read the result

    The slope, whether it meets a common goal and the fill to plan for.

Tips

  • A common goal is a fall of about six inches over the first ten feet away from the house.
  • Soil that slopes toward the wall sends rain to the foundation.
  • Keep mulch thin and away from the siding and the foundation.
Questions

About this tool.

Is this a rule?

No. It is a common rule of thumb. Local rules and site conditions can differ.

What if there is a patio or a walk?

Hard surfaces should slope away too, about a quarter inch per foot is a common target.

Can I fix it myself?

Small areas often can be. Larger areas and areas with drains benefit from planning.

Free estimate

Ready for a foundation you can count on?

Call us and we will visit, look closely at your foundation, crawl space or slab and give you a clear plan and a written scope.

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