Inorganic subsoil for filling holes, raising low ground, and backfill. Small rocks and bits of stick or root are normal in the mix, this is structural material and not a growing medium. Do not use it to level a lawn surface or fill flower beds, put topsoil over it for anything you want to plant. Place it in lifts and compact as you go.
Wonderful experience! They put the mulch exactly where we wanted. This mulch spread very easily and didn’t have the usual “mulch smell.” We will definitely use again!
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How Much Fill Dirt Do I Need?
One cubic yard covers about 54 square feet at a 6 inch depth, which is the minimum working depth for most fill jobs. If you are backfilling a foundation or filling a low spot 8 to 12 inches deep, plan on roughly 27 to 40 square feet per yard instead. Measure the low area, decide your depth based on what is going on top, and order by the cubic yard from there. Estimate fill dirt with our free topsoil calculator
What is a Yard?
A yard is approximately 27 cubic feet. As a general guideline, one yard of material can cover an area of about 100-160 square feet at a 2-3 inch depth.
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The best local fill dirt, without the guesswork.
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About this fill dirt
Inorganic subsoil for filling holes, raising low ground, and backfill. Small rocks and bits of stick or root are normal in the mix, this is structural material and not a growing medium. Do not use it to level a lawn surface or fill flower beds, put topsoil over it for anything you want to plant. Place it in lifts and compact as you go.
Wonderful experience! They put the mulch exactly where we wanted. This mulch spread very easily and didn’t have the usual “mulch smell.” We will definitely use again!
How Much Fill Dirt Do I Need?
One cubic yard covers about 54 square feet at a 6 inch depth, which is the minimum working depth for most fill jobs. If you are backfilling a foundation or filling a low spot 8 to 12 inches deep, plan on roughly 27 to 40 square feet per yard instead. Measure the low area, decide your depth based on what is going on top, and order by the cubic yard from there. Estimate fill dirt with our free topsoil calculator
What is a Yard?
A yard is approximately 27 cubic feet. As a general guideline, one yard of material can cover an area of about 100-160 square feet at a 2-3 inch depth.
Wonderful experience! They put the mulch exactly where we wanted. This mulch spread very easily and didn’t have the usual “mulch smell.” We will de...
Read full review
Wonderful experience! They put the mulch exactly where we wanted. This mulch spread very easily and didn’t have the usual “mulch smell.” We will definitely use again!
Placing an order online was so easy. Delivery was on time. When the driver realized we had a newly poured driveway they erred on the side of cautio...
Read full review
Placing an order online was so easy. Delivery was on time. When the driver realized we had a newly poured driveway they erred on the side of caution and opted not ti drive in it. The company even sent me a message explaining that call. Would recommend!
Most fill jobs finish with a topsoil cap once the structural work is compacted, especially if grass or beds are going in on top. A layer of mulch or gravel over the topsoil is common for anyone finishing out a slope or a low bed near the house. If you are backfilling near a foundation, some people also bring in a bit of drain rock at the base before the fill goes in.
Do not dump fill in one deep pile and call it done. Place it in 6 to 8 inch lifts and compact each one with a plate compactor or hand tamper before adding the next layer. Skip this on Coeur d'Alene's silt loam and you will watch the ground sink unevenly over the next couple winters as freeze thaw cycles and spring saturation work through the uncompacted material, which means redoing the grading later.
Mulch Mound Pro Tip
The most common mistake is treating fill dirt like topsoil and planting straight into it. It has no organic matter and compacts too hard for roots to push through easily. Cap it with 4 to 6 inches of real topsoil once your structural fill is compacted and settled, then plant into that layer instead.
Mulch Mound Pro Tip
If you are filling a large low area, it is often more efficient to bring in fill dirt for the bulk of the depth and reserve topsoil only for the top few inches where things will actually grow. This costs less overall than filling the whole depth with topsoil, and it gives you better long term stability since fill compacts more predictably under a structure or a slope.
Grading and Filling in Coeur d'Alene
Coeur d'Alene sits on silt loam that holds water and settles unevenly once you disturb it, which is exactly why so many local projects need fill brought in rather than reshaped from what is already there. Foundation work near the lake, backfill around pools, and low spots that pond every spring runoff all call for a structural material rather than native soil. At 2247 feet with a last frost around May 5, most people are grading and building up ground through late spring into fall, then capping with topsoil before planting season closes in around the October frost. This is subsoil, not a growing medium, so it holds its shape under load in a way native silt loam alone will not.
What Fill Dirt Is
Fill dirt is inorganic subsoil sold for volume and grade, not for growing. Small rocks and bits of stick or root are normal in the mix. It compacts predictably, which is exactly what you want under slabs, in trenches, and behind walls.
Fill Dirt vs Topsoil
Fill dirt builds the shape of the ground, topsoil grows things on top of it. Bring the grade up with fill, then cap it with 4 to 6 inches of topsoil anywhere grass or plants are going in.
Compact in Lifts
Place fill in layers of 4 to 6 inches and compact each one before adding the next. Dumping the full depth at once leaves voids that settle later, and settling is the one problem fill is supposed to solve.
Frequently Asked Questions
Click a question to see the answer
Answer
Is fill dirt the same as topsoil in Coeur d'Alene?
No. Fill dirt is subsoil screened of debris, meant to build up or level ground, not grow anything in. Coeur d'Alene's native silt loam is fine for planting on its own in many yards, but fill dirt is what you bring in for foundations, low spots, and backfill, then you cap it with topsoil if anything needs to grow on top.
Answer
How many cubic yards do I need to fill a low spot in my yard?
Measure the square footage of the low area and multiply by your target depth in feet. One cubic yard covers about 54 square feet at 6 inches, so a 300 square foot spot filled 6 inches deep runs close to 5.5 cubic yards. Round up slightly since compaction will reduce the finished depth a bit.
Answer
When should I bring in fill dirt for a spring project?
Fill dirt work is not seasonal, it is job driven, so you can order whenever your project calls for it. Many Coeur d'Alene homeowners tackle grading and backfill work between last frost around May 5 and first frost in early October, when the ground is workable and there is time to compact in stages before planting anything on top.
Answer
Where will the delivery truck place the load?
The truck dumps the material at a spot you designate near your work area, ideally a driveway or other hard, accessible surface, since fill dirt is heavy and difficult to wheelbarrow long distances. Delivery timing is scheduled at checkout, and clearing a path for the truck ahead of time keeps things simple on delivery day.
Answer
Should I use fill dirt or gravel for backfilling my foundation?
Fill dirt works well for general backfill and building up grade around a foundation, but if drainage right against the foundation wall is a concern, some people put a layer of drain rock at the base first. Fill dirt compacted in lifts is generally the more economical choice for the bulk of the backfill depth.》