How to keep leveled ground from becoming wavy over time
Achieving precise elevations and flat shapes is difficult because compacted fill and leveled soil often become wavy over time due to settling. This makes it hard to lay down fill or top dressing that stays flat in the long run without risking damage to existing grass.
What the numbers show
Counted from the threads quoted below. How we count
- This comes up 20.2× more often in r/Landscaping than across the site as a whole.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1using a skid steer with a smooth bucket and tiller attachmentDid this help you?
- 2backdragging and sprinkling previously tilled dirtDid this help you?
- 3running over fill with a plate compactorDid this help you?
- 4Reading beginner guides for lawn careDid this help you?
- 5Putting bags of rocks under the front to level it outDid this help you?
- 6Using shims to prop up the leaning sideDid this help you?
- 7Putting rocks under the front of the unitDid this help you?
- 8adding dirt and topping it with topsoilDid this help you?
- 9Digging out the area and filling with dry fill or compacted gravelDid this help you?
- 10Installing french drains or vertical drainageDid this help you?
- 11Calling a professional or expertDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“I have finally gotten to the point of digging the area up for the new patio and trying to regrade the best I can and noticed shortly after how bouncy the ground was.”source ↗
“French drain doesn’t seem to be a practical solution given the situation and area I’m working with.”source ↗
“Looking into vertical drainage currently but I am completely DIY.”source ↗
“achieving very precise elevations, grades snd shapes seems impossible with this approach.”source ↗
“a couple years later the perfectly flat ground became wavy due to settling.”source ↗
“how can you lay down fill flat and compacted and put sod on it and have it stay flat in the long run?”source ↗
“had someone dig up my irrigation valve box, and after they backfilled it, the soil settled unevenly. Now I have water pooling around the valve box because of the low spot leading toward the swale.”source ↗
“I previously tried adding some dirt and topping it with topsoil, but I think I did it while the ground was still wet, so it didn't seem to help.”source ↗
“Does the amount of top dressing/leveling of soil look ok or does it seem too thick where it could kill out existing grass.”source ↗
“My mini split was installed 14 months ago by a local company. On a periodic inspection by that company they mentioned the unit was leaning.”source ↗
“The technician said I could put some rocks under the front to level it out.”source ↗
“Is this good advice or do I need to do more? Is this a job I should tackle myself or try to get a different hvac company to level it off.”source ↗
Where this came up
People with this problem also raised
- 2Can you fix a settling foundation yourself on a tight budget?
- 2Did I use the wrong soil for foundation grading?
- 7Why are there big soil gaps around my foundation?
- 6How to fix yard grading under existing paving stones
- 10How to handle floor height differences between rooms
- 9How to prep a weed and mulch area for laying sod