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.

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One cubic yard of this fill dirt covers about 54 square feet at a 6 inch depth, and most structural fill jobs run 6 to 12 inches deep depending on how low the grade is. Measure the low area in square feet, decide your target depth, and order in cubic yards from there, rounding up rather than down since running short mid job means a second delivery.

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.

San Diego Fill Dirt Delivery

San Diego Fill Dirt Delivery

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Regular price $38.00 per 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.

Great service. We ordered topsoil from Mulch Mound and the best experience. Thank you so much!

One cubic yard of this fill dirt covers about 54 square feet at a 6 inch depth, and most structural fill jobs run 6 to 12 inches deep depending on how low the grade is. Measure the low area in square feet, decide your target depth, and order in cubic yards from there, rounding up rather than down since running short mid job means a second delivery.

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 San Diego Folks

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Complete Your Outdoor Project

Most jobs that call for fill dirt also need a layer of topsoil on top once the grade is set, since fill dirt itself is not meant to grow anything. If the finished area will see foot traffic or drainage, a base layer of road base or crushed rock underneath the fill can help stop future settling, particularly in San Diego's clay-heavy ground.

Mulch Mound Pro Tip

Never dump fill dirt in one deep pour. Place it in 6 to 8 inch lifts and compact each layer with a plate compactor or hand tamper before adding the next. In San Diego's sandy clay, skipping this step is the number one reason people see cracking patios or sunken yard sections a year or two after the fact, the ground just keeps finding its final resting depth on its own.

Mulch Mound Pro Tip

Fill dirt is a structural material, not something to plant into directly. Once you reach your final grade, cap it with 4 to 6 inches of actual topsoil before seeding or planting anything. Skipping the cap and planting straight into subsoil usually means poor drainage and stunted root growth, since the fill has none of the organic content plants need.

Mulch Mound Pro Tip

If you are filling a large low spot, consider a two material approach, cheaper fill dirt for the bulk of the depth and topsoil only for the top few inches where roots will actually sit. This keeps costs reasonable while still giving anything you plant a proper growing layer, rather than paying topsoil prices for material that is just going to sit under a patio slab.

Grading and Filling in San Diego

San Diego sits on sandy clay that drains fine on the surface but can hold water underneath, which is exactly the kind of ground that settles unevenly once you pile fill on top without compacting it. With so much of the city built on graded hillsides and canyon lots, fill dirt here is mostly used to correct grade around foundations, retaining walls, and pool decks rather than to fill flat open fields. At 62 feet elevation and with mild year round temperatures, there is no frost heave to worry about, but the clay content means poor compaction will show up as slumping months later, not right away.

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 level my backyard in San Diego?

Yes, fill dirt is the standard choice for raising low spots and leveling grade before any turf, patio, or planting goes in. Just plan to place it in compacted lifts rather than one big pour, especially given the clay content in San Diego soil, or the area will settle unevenly over time.

Answer

How many cubic yards of fill dirt do I need for a small pool backfill?

One cubic yard covers about 54 square feet at 6 inches deep, so for a typical pool backfill perimeter you are usually looking at somewhere between 3 and 8 cubic yards depending on the gap width and depth. Measure the actual voided space around the shell and calculate from there for the most accurate number.

Answer

Is there a right time of year to have fill dirt delivered in San Diego?

Not really, fill dirt work is driven by the project timeline rather than the season since San Diego rarely sees hard rain or freezing ground. The main thing is scheduling delivery once your excavation or grading prep is actually done, so the material does not sit around before you can place it.

Answer

Where will the delivery truck place the fill dirt on my property?

The driver will place the load as close as possible to your work area based on where you direct them on delivery day. Make sure there is clear truck access to the drop spot beforehand, since fill dirt is heavy and moving it a long distance by wheelbarrow adds a lot of extra labor.

Answer

Should I order fill dirt or topsoil for my project?

If you are raising grade, backfilling a foundation, or building a base under a patio, fill dirt is the right call since it is a structural material meant to be compacted. If you are planting grass, shrubs, or a garden bed, you want topsoil instead, or a layer of it capping the fill dirt once your grade is set.

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