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.

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!

Fill dirt runs about 1.3 tons per cubic yard, and one cubic yard covers roughly 54 square feet at a 6 inch depth. Most structural fill jobs here go 6 to 12 inches deep, so a 200 square foot low spot at 6 inches needs around 4 cubic yards, and doubling the depth roughly doubles the yardage. Measure the area first, then decide on depth based on how much you are trying to raise the grade.

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.

Carlsbad Fill Dirt Delivery

Carlsbad Fill Dirt Delivery

4.7
137 reviews
Regular price $38.00 per Yard
Regular price Sale price $38.00
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Minimum of 3 Yard
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Why order through Mulch Mound

The best local fill dirt, without the guesswork.

We hand-pick and partner with the best yards in your region, keep only the ones our buyers rate well, and back each load with our guarantee.

Mulch Mound Guarantee

If your fill dirt isn't the quantity or quality you ordered, we'll make it right.

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.

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!

Fill dirt runs about 1.3 tons per cubic yard, and one cubic yard covers roughly 54 square feet at a 6 inch depth. Most structural fill jobs here go 6 to 12 inches deep, so a 200 square foot low spot at 6 inches needs around 4 cubic yards, and doubling the depth roughly doubles the yardage. Measure the area first, then decide on depth based on how much you are trying to raise the grade.

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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How It Works

Getting started is easy — just follow these simple steps

1

Choose your quantity

Adjust the quantity to match your project. One cubic yard covers about 100 to 160 square feet at a 2 to 3 inch depth.

2

Select your delivery date

Select a delivery date you'd like for the product to be dropped off at your home

3

Sit back and wait

Sit back, wait, and let us work our magic to make sure the highest quality product is delivered to your driveway.

From The Mouths of Carlsbad Folks

4.7
out of 5 based on 137 reviews
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Complete Your Outdoor Project

Most fill dirt jobs finish with a cap of topsoil once the grade is where it needs to be, especially if sod, planting beds, or turf are going in over it. Some Carlsbad customers also order a layer of decomposed granite or gravel on top near pool decks and walkways where drainage matters more than growing anything. Fill dirt does the heavy lifting, the finish material on top is what people actually see and walk on.

Mulch Mound Pro Tip

Do not dump fill dirt in one deep pour and walk away. Place it in 6 to 8 inch lifts and compact each layer before adding the next, ideally with a plate compactor rather than just foot traffic or a hose. In Carlsbad's sandy ground, uncompacted fill will keep settling for one to two years, showing up as sunken spots near pool coping, patio edges, or foundation lines exactly where you cannot afford movement.

Mulch Mound Pro Tip

A common mistake is treating fill dirt as topsoil and planting straight into it. It is subsoil, low in organic matter and structure, so grass and plants struggle in it directly. Cap the compacted fill with 4 to 6 inches of real topsoil before seeding, sodding, or planting beds. Skipping this step is the number one reason new lawns over fill areas come in patchy or yellow within a season.

Mulch Mound Pro Tip

If you are raising a large area, order fill dirt for the bulk of the depth and save topsoil for just the top few inches where roots actually live. This mixed approach costs less per cubic yard delivered than filling the entire depth with topsoil, and it performs better structurally since fill dirt compacts more predictably under decks, patios, and foundations than a lighter topsoil blend would.

Grading and Filling in Carlsbad

Carlsbad sits at low elevation near the coast with sandy soil that shifts and settles more than clay ever would. That makes fill dirt compaction non negotiable here, loose fill over sand will keep sinking around pool decks and foundation lines for years if it is not built up in lifts. Around LEGOLAND and the surrounding neighborhoods, a lot of the fill work we see is grading lots that were never quite level to begin with, or raising areas that pond after the rare heavy rain. Zone 10b means there is no frost heave to worry about, but settling from irrigation and gravity is still the real enemy.

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

Can I use fill dirt to raise my whole backyard before putting in a new lawn?

Yes, that is one of the most common uses for it. Build up the grade with fill dirt in compacted 6 to 8 inch lifts to reach your target height, then cap the top 4 to 6 inches with topsoil before seeding or sodding. The fill does the structural work, the topsoil gives grass roots something to actually grow in.

Answer

How many cubic yards do I need to raise a 300 square foot low spot by 8 inches?

One cubic yard covers about 54 square feet at 6 inches, so at 8 inches you get roughly 40 square feet per yard. For 300 square feet at 8 inches, plan on about 7.5 cubic yards, and round up slightly since compaction will settle the material a bit once you tamp it down.

Answer

Do I need to compact fill dirt myself or does it settle on its own over time?

You need to compact it. Left alone, sandy Carlsbad soil combined with loose fill will keep settling unevenly for a year or more, especially around foundations and pool decks where that movement causes real problems. Place it in 6 to 8 inch lifts and compact each one with a plate compactor before adding more.

Answer

How much space do you need on my property to deliver the load?

We need a clear, accessible spot such as a driveway or open area near where you are working, wide enough for the delivery truck to unload safely. Let us know at checkout if access is tight, has a slope, or requires the load to go somewhere other than the driveway.

Answer

Should I order fill dirt or topsoil for leveling out my yard?

If you are raising a significant amount of grade, six inches or more, fill dirt is the right call and costs less per yard, then cap it with a thin layer of topsoil where anything needs to grow. Topsoil alone for deep fill is expensive and does not compact as reliably for structural leveling work.

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