Mulch Installation Cost Calculator
Mulch Installation costs $340 to $500 for a typical 400 sq ft job in 2026, against a national benchmark of $410. Labor runs 2.5 crew hours at $28.78 an hour. Enter a ZIP code to apply that area's measured wages for this work and its regional price level.
What makes up the price
Cost by size
National averages, before any local adjustment. Computed from the same model as the calculator above, so the two always agree.
| Bed area | Cubic yards | Typical | Range |
|---|---|---|---|
| 225 sq ft | 2.1 | $285 | $235 to $355 |
| 325 sq ft | 3 | $360 | $295 to $445 |
| 400 sq ft | 3.7 | $410 | $340 to $500 |
| 550 sq ft | 5.1 | $525 | $430 to $650 |
| 675 sq ft | 6.3 | $600 | $500 to $750 |
The arithmetic, so you can check any quote
One cubic yard of mulch covers 108 square feet at three inches. That is the only number you need.
For any other depth, divide 324 by the depth in inches:
| Depth | A yard covers |
|---|---|
| 2 inches | 162 sq ft |
| 3 inches | 108 sq ft |
| 4 inches | 81 sq ft |
So measure your beds, divide by 108, add 10% for settling, and you know how many yards the job needs. At that point a quote is either reasonable or it is not, and you can tell which.
What it comes to, mulched three inches deep with the beds weeded and edged:
| Bed area | Yards | Cost | Per yard |
|---|---|---|---|
| 150 sq ft | 1.4 | $230 | $165 |
| 400 sq ft | 3.7 | $410 | $111 |
| 1,200 sq ft | 11.1 | $1,000 | $90 |
The per-yard figure falls with size because the delivery is paid once. If you are close to a delivery minimum, it is often worth doing the tree rings as well.
Do not put landscape fabric under mulch
This gets quoted as an upgrade and charged for as one. In a planting bed it is a mistake, and it is worth understanding why rather than taking it on faith.
- Weeds grow in the mulch, not through the fabric. Seed blows in and lands on top. Within a season there is enough decomposed mulch up there to root in, and the fabric is doing nothing about it.
- It stops the mulch feeding the soil. The point of organic mulch is that it breaks down into the ground and improves it. Fabric intercepts that, so the soil underneath gets harder and poorer year on year while the layer above gets richer.
- It becomes a mess. By year three the weeds that did root in the mulch have grown through the weave, so weeding tears the fabric up in strips. Removing it later is a genuinely unpleasant job.
- Perennials cannot spread and self-seeding plants cannot self-seed.
Where fabric does belong: under gravel, under pavers, under a path — anywhere nothing is meant to grow and nothing is meant to decompose. That is a different application and it works well.
What actually suppresses weeds in a bed is three inches of mulch and pulling the few that appear. If you want more, put down a layer of plain cardboard under the mulch: it blocks light for a season and then becomes soil.
Do not pile it against the trunk
The mulch volcano — a cone heaped up around a tree — is the single most common thing done wrong in American landscaping, and it is done by professionals.
What it does to the tree:
- Keeps the bark permanently wet, which rots it. Bark is not root tissue and is not adapted to being buried.
- Invites roots to grow up into the mulch and then circle the trunk. Those girdling roots strangle the tree over a decade or two.
- Houses voles and insects right against the bark, where they are out of sight.
The correct shape is a doughnut, not a volcano: mulch spread evenly out to the drip line if possible, pulled back to leave three to six inches of bare soil around the trunk, so you can see the flare where the trunk widens into the roots. If you cannot see that flare, there is too much mulch.
It takes no extra time and it is free. Ask for it specifically, because the default in the trade is to rake the mulch up to the trunk and make it look tidy.
Three inches, and why not more
Three inches blocks enough light to stop most weed seed germinating and slows evaporation materially. Two inches is a refresh over existing mulch. Four is the ceiling.
Past four inches mulch starts working against the bed:
- It sheds rain rather than absorbing it, so the soil below dries out.
- It holds water against stems in the wet, which rots them.
- It starves roots of air, because mulch that deep stays saturated.
The usual cause of a six-inch bed is topping up every spring without ever removing anything. If the beds are already deep, the right job this year is to pull the old mulch back and turn it over rather than adding more.
Which mulch
The whole spread across the four is about $20 a cubic yard, so on a typical bed the entire choice is worth about $75. Choose on behavior.
- Shredded hardwood — the default. Knits together as it is raked, so it stays put on a slope. Fades to gray within a season, which is only a problem if you mind.
- Dyed hardwood — usually ground pallet and construction wood rather than bark, colored with iron oxide or carbon. Holds color one to two years. The dye itself is inert; what is worth asking is what wood was ground up.
- Pine bark nuggets — coarse, slow to break down, lasts longest. And it floats, which rules it out on any slope or anywhere water runs.
- Cedar or cypress — holds its color without pigment and breaks down slowly. The most expensive, and the one that smells like something.
Two things that are not worth it: rubber mulch, which does not decompose, holds heat, and is very difficult to remove once it is mixed into soil; and bagged mulch for a bed of any size, which runs two to three times the bulk price per yard. Bags make sense for a single tree ring, not for a frontage.
When to do it
Mid to late spring, once the soil has warmed. Mulching too early insulates cold soil and holds the ground temperature down, which delays everything in the bed.
Fall mulching is also worthwhile in a cold climate — it moderates the freeze-thaw cycling that heaves shallow-rooted perennials out of the ground over winter. If you only do it once a year, spring is the one.
Questions worth asking
- How many cubic yards, and at what depth? Check it against 108 sq ft a yard.
- Is the edging included? A cut spade edge is what makes the job look professional and the first thing a cheap quote drops.
- Is the old mulch being removed or added to? After a few years this matters more than the mulch itself.
- Will you keep it off the trunks? Ask directly.
- Bulk or bagged? On anything over a yard or two, bagged costs two to three times as much.
- What is in the dyed mulch? Ground pallets are normal; ground treated lumber is not.
Common questions
How much does mulch installation cost?
About $410 to mulch 400 sq ft of beds three inches deep with the beds weeded and edged — roughly $110 per cubic yard delivered and spread. A small 150 sq ft bed is around $230 because the delivery is paid once however little arrives, and 1,200 sq ft of beds comes down to about $90 a cubic yard.
How much mulch do I need?
One cubic yard covers 108 square feet at three inches, which is the only figure you need. Measure the beds, divide the total by 108, and add about 10% for settling. For other depths divide 324 by the depth in inches: a yard covers 162 sq ft at two inches and 81 at four. Doing this before you ask for quotes tells you immediately whether a price is reasonable.
Should I put landscape fabric under mulch?
Not in a planting bed. Weeds grow in the mulch rather than through the fabric — seed blows in, lands on top, and within a season there is enough decomposed mulch up there to root in. Worse, the fabric stops the mulch feeding the soil, which is the whole point of organic mulch, so the ground underneath gets poorer year on year. By year three the weeds have grown through the weave and weeding tears it up in strips. Fabric belongs under gravel and pavers, where nothing is meant to grow or decompose.
How deep should mulch be?
Three inches for a fresh bed — enough to block light from weed seed and slow evaporation, not enough to cause problems. Two inches is a refresh over existing mulch. Four is the absolute ceiling: past that mulch sheds rain instead of absorbing it, holds water against stems, and starves roots of air. If your beds are already six inches deep from annual top-ups, this year's job is to pull the old mulch back and turn it over, not to add more.
Why should mulch not touch the tree trunk?
Because bark is not root tissue and is not adapted to being buried. Mulch piled against a trunk keeps the bark permanently wet and rots it, invites roots to grow up into the mulch and circle the trunk where they slowly strangle it, and houses voles and insects right against the bark out of sight. The correct shape is a doughnut rather than a volcano: pulled back three to six inches so the flare where the trunk widens into the roots is visible. It costs nothing and you have to ask for it.
Which type of mulch is best?
The spread across the common four is only about $20 a cubic yard, so choose on behavior rather than price. Shredded hardwood knits together and stays put on a slope; it fades to gray in a season. Dyed hardwood holds color for one to two years. Pine bark nuggets last longest but float, which rules them out on any slope. Cedar and cypress hold color without pigment and break down slowly, at the highest price.
Is dyed mulch safe?
The dye is: it is iron oxide or carbon black, both inert. The question worth asking is what wood was dyed, because dyed mulch is usually ground pallet and construction waste rather than bark — which is fine in itself, and not fine if treated lumber went into the grinder. Ask the supplier what the feedstock is. Reputable yards will tell you, and a yard that cannot is a reason to buy natural mulch instead.
Is rubber mulch a good idea?
Not in a planting bed. It does not decompose, so it never improves the soil; it holds heat, which is hard on shallow roots; and once it has worked its way into the soil it is extremely difficult to get out again. It has a legitimate use under playground equipment, where the impact absorption is the point and nothing is growing. In a bed, organic mulch does the job and turns into soil while doing it.
Is bulk mulch cheaper than bags?
Substantially. Bulk runs $30 to $65 a cubic yard depending on the type, where a 2 cubic foot bag at $4 to $6 works out at $54 to $81 a yard — two to three times the price once you account for the volume. A cubic yard is thirteen and a half bags. Bags make sense for a single tree ring or a container; for a house frontage they are the most expensive way to buy the same material.
When is the best time to mulch?
Mid to late spring, once the soil has warmed. Mulching too early insulates cold ground and holds the temperature down, which delays everything in the bed. Fall mulching is also worthwhile in a cold climate, because it moderates the freeze-thaw cycling that heaves shallow-rooted perennials out of the ground over winter. If you only mulch once a year, make it spring.
Does mulch attract termites?
Mulch does not attract termites, but it does give them cover and moisture if it is piled against the house. The sensible precaution is a gap: keep mulch six inches back from the foundation and the siding, and never let it reach the weep holes in brick or cover the bottom edge of siding. Cypress and cedar are mildly termite-resistant, which is a marginal benefit compared with simply leaving the gap.
Does mulch need removing before adding more?
Not every year, but eventually. Topping up annually without removing anything is how beds end up six inches deep, which is actively bad for the plants. The practical rule: measure before adding. If the existing layer is already two inches or more after settling, turn it over and fluff it up rather than adding, or pull some out. Only add enough to bring the total back to three inches.
Where these numbers come from
Nothing here is copied from a contractor directory. Labor is priced from what the trades are actually paid, materials from published producer prices, and both are adjusted to your area using federal cost-of-living data.
- Landscaping services, United States: $28.78/hour, August 2026 (BLS CES CES6056173003)
- Shredded hardwood mulch: $42.00 per cubic yard (price recorded October 2026, not index-adjusted)