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Dogwood mulch chart
Put your bed area, dogwood mulch depth and waste allowance in: 1500 sq ft at 4 inches with 10% waste needs 1,650.00 sq ft, 20.37 cubic yards exact — order 21 cubic yards.
★ CONSTRUCTION · MULCH · DOGWOOD
Dogwood Mulch Chart: 1500 Sq Ft, 4 Inches, Order 21 Yards
On the defaults — 1500 square feet at 4-inch depth with 10% waste — dogwood mulch needs 1,650.00 square feet of cover, 20.37 cubic yards exact, so order 21 cubic yards. This is the DOGWOOD version — the mulch chart for dogwood beds — the tamarack-mulch-chart page is the TAMARACK version, the hazelnut-mulch-chart page is the HAZELNUT version, and the mulch-chart page is the general mulch calculator behind all of them.
What does 20.37 cubic yards of dogwood mulch mean?
It means a 1500 square foot bed, once the 10% waste allowance is added, needs 1,650.00 square feet of cover at 4 inches deep — 550.00 cubic feet, which is 20.37 cubic yards. Because mulch is sold by the whole yard, you order 21 cubic yards, leaving 0.63 of a yard spare for settling and thin spots. At 4 inches, one cubic yard covers 81.0 square feet, so the 21 ordered yards cover 1,701.00 square feet at that depth — just past the 1,650.00 needed.
Output · formula · meaning
| Output | Formula | What it means |
|---|---|---|
| Area needed | area × (1 + waste ÷ 100) | 1,650.00 sq ft — 1500 × 1.10. |
| Exact volume | area needed × depth ÷ 324 | 20.37 cubic yards — 1,650.00 × 4 ÷ 324. |
| Order quantity | round exact volume up to a whole yard | 21 cubic yards — the next whole yard above 20.37. |
| Coverage per yard | 324 ÷ depth | 81.0 sq ft per yard — 324 ÷ 4. |
| Area behind a target volume | target volume × 324 ÷ depth ÷ (1 + waste ÷ 100) | 1500 sq ft — 20.37 × 324 ÷ 4 ÷ 1.10, rounded. |
| Depth behind a target volume | area needed × depth ÷ 324, solved for depth | 4 inches — the depth that turns 1,650.00 sq ft into 20.37 yards. |
| Waste behind a target volume | target volume × 324 ÷ depth ÷ area − 1, as a percent | 10% — the allowance that turns 1500 sq ft into 1,650.00 sq ft. |
Three things to check before you trust the number
First, the area must be the true bed area: length times width for each bed, added together, with L-shaped beds split into two rectangles. A guessed area moves the order by the same percentage as the guess. Second, the depth must be the settled depth you want, not the fluffy depth straight from the bag — dogwood mulch settles, so a 4-inch target may need a slightly deeper spread on the day. Third, the waste allowance must fit the ground: 10% suits flat, straight-edged beds, while sloped or irregular beds with trees and edging to work around deserve more, or the last corner runs short.
Worked example
Area 1500 sq ft, depth 4 inches, waste 10%. Area needed: 1500 × 1.10 = 1,650.00 sq ft. Exact volume: 1,650.00 × 4 ÷ 324 = 20.37 cubic yards. Order: round 20.37 up to 21 cubic yards. Drop the waste to 0% and the exact volume falls to 18.52 yards, order 19; drop the depth to 3 inches and it falls to 15.28 yards, order 16. The order always rounds up, because a short delivery leaves part of the bed bare.
Dogwood mulch lookup table
Every row already includes the 10% waste allowance: find your bed area and depth, read across for the exact volume, and order the whole yards in the last column. The headline row — 1500 square feet at 4 inches — is the worked example above.
| Area (sq ft) | Depth (inches) | Area needed (sq ft, 10% waste) | Exact (cubic yards) | Order |
|---|---|---|---|---|
| 500 | 3 | 550.00 | 5.09 | 6 cubic yards |
| 500 | 4 | 550.00 | 6.79 | 7 cubic yards |
| 750 | 3 | 825.00 | 7.64 | 8 cubic yards |
| 750 | 4 | 825.00 | 10.19 | 11 cubic yards |
| 1000 | 3 | 1,100.00 | 10.19 | 11 cubic yards |
| 1000 | 4 | 1,100.00 | 13.58 | 14 cubic yards |
| 1250 | 3 | 1,375.00 | 12.73 | 13 cubic yards |
| 1250 | 4 | 1,375.00 | 16.98 | 17 cubic yards |
| 1400 | 3 | 1,540.00 | 14.26 | 15 cubic yards |
| 1400 | 4 | 1,540.00 | 19.01 | 20 cubic yards |
| 1500 | 3 | 1,650.00 | 15.28 | 16 cubic yards |
| 1500 | 4 | 1,650.00 | 20.37 | 21 cubic yards |
| 1750 | 3 | 1,925.00 | 17.82 | 18 cubic yards |
| 1750 | 4 | 1,925.00 | 23.77 | 24 cubic yards |
| 2000 | 3 | 2,200.00 | 20.37 | 21 cubic yards |
| 2000 | 4 | 2,200.00 | 27.16 | 28 cubic yards |
Every branch, checked
1500 square feet at 4-inch depth with 0% waste gives 18.52 cubic yards exact, order 19 cubic yards. 1500 square feet at 3-inch depth with 10% waste gives 15.28 cubic yards exact, order 16 cubic yards. 1400 square feet at 4-inch depth with 10% waste gives 19.01 cubic yards exact, order 20 cubic yards. 1600 square feet at 4-inch depth with 10% waste gives 21.73 cubic yards exact, order 22 cubic yards. Each branch changes exactly one input, so the difference from 20.37 isolates that input.
The reverses, worked backwards
The area behind 20.37 cubic yards is 1500 sq ft: at 1400 sq ft the figures are 19.01 cubic yards exact, order 20 yards, and at 1600 sq ft they are 21.73 cubic yards exact, order 22 yards — 100 square feet moves the volume by about 1.36 yards at this depth. The depth behind 20.37 cubic yards is 4 inches: at 3 inches the figures are 15.28 cubic yards exact, order 16 yards, and at 5 inches they are 25.46 cubic yards exact, order 26 yards — one inch moves the volume by about 5.09 yards on this bed. The waste behind 20.37 cubic yards is 10%: at 5% the figures are 19.44 cubic yards exact, order 20 yards, and at 15% they are 21.30 cubic yards exact, order 22 yards — five points of waste moves the volume by about 0.93 yards.
What the defaults assume
The defaults assume one rectangular-equivalent bed of 1500 square feet, a uniform 4-inch layer, and a 10% waste allowance for spillage, settling and uneven ground. Real dogwood beds vary: mulch thins near trunks and thickens in hollows, so the honest use is to measure each bed, add the areas, and keep the waste allowance at 10% or higher on irregular ground. Zero square feet is the honest edge: 0.00 cubic yards exact, order 0 yards. Negative areas, zero depth and negative waste are rejected, and the 324-square-foot check confirms the formula: 324 sq ft at 4 inches with no waste is exactly 4.00 cubic yards.
Who uses this
A homeowner mulching the dogwood beds before summer: the table turns a tape measurement into a delivery order without a second trip to the yard. A landscaper quoting a dogwood planting: the exact volume prices the job, and the rounded order is what goes on the truck. A garden centre clerk checking a customer order: the lookup table answers the common bed sizes at a glance, and the calculator handles the odd sizes. A groundskeeper budgeting a season of beds: the waste line shows exactly what spillage and settling cost across the whole property.
Accuracy & limitations
The arithmetic is exact for the inputs entered; the judgement is in the inputs. A mismeasured area, a depth measured fluffy instead of settled, or a waste allowance too low for sloped ground will each move the answer by exactly the amount of the error. The model does not include delivery minimums, bag-versus-bulk pricing, or the extra mulch a fresh planting hole needs — price those separately, and re-measure when beds are reshaped. This page is a calculation tool, not landscaping advice.
Cite this calculator
Dogwood mulch 1500 sq ft at 4-inch depth with 10% waste needs 1,650.00 sq ft, 20.37 cubic yards exact, order 21 yards. Calculator, plus 16-row lookup table. Source: Bright Side Kit, https://brightoolbox.com/dogwood-mulch-chart/, accessed 30 October 2026 (2026-10-30).
Frequently asked questions
How many cubic yards of dogwood mulch do I need for 1500 square feet at 4 inches?
With the usual 10% waste allowance, 20.37 cubic yards exact — order 21 cubic yards. Without waste the exact figure is 18.52 yards, order 19, but the waste allowance covers spillage and settling, so 21 is the safer order.
Why does the order round up instead of to the nearest yard?
Because a short delivery leaves part of the bed bare, while a small surplus tops up thin spots. Rounding 20.37 down to 20 would leave 0.37 of a yard — about 12 cubic feet — of bed uncovered.
What does the 324 in the formula mean?
One cubic yard is 27 cubic feet, and a 1-inch layer over 324 square feet is exactly 27 cubic feet. So one yard covers 324 square feet at 1 inch, 162 at 2 inches, 108 at 3 inches and 81 at 4 inches.
Is 4 inches the right depth for dogwood mulch?
Four inches is the usual depth for dogwood beds and weed-heavy ground: deep enough to hold moisture and suppress weeds without smothering roots. A thin top-up on an existing bed may need only 2 inches, and fresh beds on weedy ground may take 4.
How do I measure an L-shaped dogwood bed?
Split it into two rectangles, measure length times width for each, and add the areas. A single guessed number for an L-shaped bed is the most common cause of a short order.
Does dogwood mulch settle after delivery?
Yes — fresh mulch settles as it compacts and breaks down, which is part of what the 10% waste allowance covers. If the bed looks thin a few weeks after spreading, the surplus from rounding up is the top-up.