What does 223.06 cubic yards of pecan hull mulch mean?
It means a 21900 square foot bed, once the 10% waste allowance is added, needs 24,090.00 square feet of cover at 3 inches deep — 6,022.50 cubic feet, which is 223.06 cubic yards. Because mulch is sold by the whole yard, you order 224 cubic yards: the exact figure sits 0.94 yards below the next whole yard, so the order carries 0.94 yards of headroom for spillage and uneven ground. At 3 inches, one cubic yard covers 108.0 square feet, so the same bed at 2 inches would need only 148.70 yards, and at 4 inches it would need 297.41 yards.
Output · formula · meaning
| Output | Formula | What it means |
|---|
| Area needed | area × (1 + waste ÷ 100) | 24,090.00 sq ft — 21900 × 1.10. |
| Volume in cubic feet | area needed × depth ÷ 12 | 6,022.50 cubic feet — 24,090.00 × 3 ÷ 12. |
| Exact volume | area needed × depth ÷ 324 | 223.06 cubic yards — 24,090.00 × 3 ÷ 324. |
| Order quantity | round exact volume up to a whole yard | 224 cubic yards — the next whole yard above 223.06. |
| Coverage per yard | 324 ÷ depth | 108.0 sq ft per yard — 324 ÷ 3. |
| Area behind a target volume | target volume × 324 ÷ depth ÷ (1 + waste ÷ 100) | 21900 sq ft — 223.06 × 324 ÷ 3 ÷ 1.10, rounded. |
| Depth behind a target volume | area needed × depth ÷ 324, solved for depth | 3 inches — the depth that turns 24,090.00 sq ft into 223.06 yards. |
| Waste behind a target volume | target volume × 324 ÷ depth ÷ area − 1, as a percent | 10% — the allowance that turns 21900 sq ft into 24,090.00 sq ft. |
Three things to check before you trust the number
First, measure the bed honestly: length times width for each bed, added together, with L-shaped beds split into rectangles. A guessed area moves the order by the same percentage as the guess. Second, keep the depth honest: pecan hulls are tough and fibrous, so they knit into a springy layer that holds moisture well, but even a springy layer thins as it breaks down and the thin spots need topping up through the season. Third, do not skip the waste allowance on pecan hull: even well-laid pecan hulls scatter at the edges, and spillage and uneven ground still eat into the load, so the 10% allowance is the difference between finishing the bed and running short with the truck already gone. The headline order of 224 yards carries 0.94 yards of headroom, which covers ordinary spillage on a bed like this one. The pecan hulls themselves are hulls left after the pecan harvest — the mulch comes from the orchard, not from timber.
Worked example
Area 21900 sq ft, depth 3 inches, waste 10%. Area needed: 21900 × 1.10 = 24,090.00 sq ft. Exact volume: 24,090.00 × 3 ÷ 324 = 223.06 cubic yards. Order: round 223.06 up to 224 cubic yards. Drop the waste to 0% and the exact volume falls to 202.78 yards, order 203; raise the waste to 5% and it is 212.92 yards, order 213; raise it to 15% and it is 233.19 yards, order 234. Drop the depth to 2 inches and it falls to 148.70 yards, order 149; raise it to 4 inches and it climbs to 297.41 yards, order 298. Depth moves the answer faster than waste does, because every inch adds a full layer across the whole bed.
Pecan hull mulch lookup table
Every row below applies 10% waste to the area first, then divides by 324: yards = area needed × depth ÷ 324, rounded up to the next whole yard for the order. Find your bed size and depth, read across, and order the last column.
| Area (sq ft) | Depth (inches) | Area needed (sq ft, 10% waste) | Exact (cubic yards) | Order |
|---|
| 300 | 2 | 330.00 | 2.04 | 3 cubic yards |
| 300 | 3 | 330.00 | 3.06 | 4 cubic yards |
| 600 | 2 | 660.00 | 4.07 | 5 cubic yards |
| 600 | 3 | 660.00 | 6.11 | 7 cubic yards |
| 800 | 3 | 880.00 | 8.15 | 9 cubic yards |
| 800 | 4 | 880.00 | 10.86 | 11 cubic yards |
| 1100 | 2 | 1,210.00 | 7.47 | 8 cubic yards |
| 1100 | 3 | 1,210.00 | 11.20 | 12 cubic yards |
| 1300 | 2 | 1,430.00 | 8.83 | 9 cubic yards |
| 1500 | 3 | 1,650.00 | 15.28 | 16 cubic yards |
| 1600 | 3 | 1,760.00 | 16.30 | 17 cubic yards |
| 1600 | 4 | 1,760.00 | 21.73 | 22 cubic yards |
| 1800 | 2 | 1,980.00 | 12.22 | 13 cubic yards |
| 2200 | 3 | 2,420.00 | 22.41 | 23 cubic yards |
| 2600 | 3 | 2,860.00 | 26.48 | 27 cubic yards |
| 3200 | 2 | 3,520.00 | 21.73 | 22 cubic yards |
Every branch, checked
A 21900 square foot bed at 3-inch depth with 0% waste gives 202.78 cubic yards exact, order 203 cubic yards. The same bed at 2-inch depth with 10% waste gives 148.70 cubic yards exact, order 149 cubic yards. A 21800 square foot bed at 3-inch depth with 10% waste gives 222.04 cubic yards exact, order 223 cubic yards. The same bed at 4-inch depth with 10% waste gives 297.41 cubic yards exact, order 298 cubic yards. Each branch changes exactly one input, so the difference from 223.06 isolates that input.
The reverses, worked backwards
The area behind 223.06 cubic yards is 21900 sq ft: at 21800 sq ft the figures are 222.04 cubic yards exact, order 223 cubic yards, and at 22000 sq ft they are 224.07 cubic yards exact, order 225 cubic yards. The depth behind 223.06 cubic yards is 3 inches: at 2 inches the figures are 148.70 cubic yards exact, order 149 cubic yards, and at 4 inches they are 297.41 cubic yards exact, order 298 cubic yards — one inch either way moves the order by about 74.35 yards. The waste behind 223.06 cubic yards is 10%: at 5% the figures are 212.92 cubic yards exact, order 213 cubic yards, and at 15% they are 233.19 cubic yards exact, order 234 cubic yards.
What the defaults assume
The defaults assume a flat 21900 square foot bed, a uniform 3-inch layer, and a 10% waste allowance. Real pecan hull beds are rarely simple rectangles: paths and tree trunks eat into the area, and pecan hulls at the edges wash into the lawn, so measure the planted area only and keep the waste allowance on sloped ground. Zero square feet is the honest edge: 0.00 cubic yards exact, order 0. A depth of zero or below, a negative area, or a negative waste allowance is rejected, because none of them describes a real bed.
Who uses this
A gardener dressing beds and paths with pecan hull: the 21900 square foot headline is a large garden bed or a long drive, and the table covers everything from a 300 square foot border to a 3200 square foot yard. A landscaper quoting a pecan hull job: the waste column protects the quote, and the order column is the number given to the supplier. A homeowner laying pecan hull on a path: the 3-inch rows are the bed depths, and the 2-inch rows are the path depths. A community garden coordinator splitting a bulk delivery: each plot reads its own row, and the orders add up to the truckload.
Accuracy & limitations
The arithmetic is exact for the inputs entered; the judgement is in the inputs. A guessed area, a depth measured before the pecan hulls settle, or a skipped waste allowance will each move the answer by exactly the amount of the error, every load. The model does not include hull washing at the edges, delivery minimums, or the gaps between pecan hulls — a supplier may sell only in whole yards or charge extra below a minimum, so confirm the order quantity with the supplier. Pecan hulls are safe around most garden plants, but a thick fresh layer can temporarily tie up surface nitrogen, so top up established beds rather than digging fresh hulls into the root zone. This page is a calculation tool, not landscaping advice.
Cite this calculator
Pecan hull mulch 21900 sq ft at 3-inch depth with 10% waste needs 24,090 sq ft, 223.06 cubic yards exact, order 224 yards. Free calculator, plus 16 rows. Source: Bright Side Kit, https://brightoolbox.com/pecan-hull-mulch-chart/, accessed 2 November 2026 (2026-11-02).
Frequently asked questions
Why does the table apply waste to the area first?
Because waste is lost cover: spillage, scattering and uneven ground mean you need more covered area than the bed measures. Adding 10% to the area, then converting to yards, keeps the waste in the same units as the bed. Applying it after the conversion gives the same number here, but the area-first order keeps the table readable.
How deep should pecan hull mulch really be?
Three inches is the standard bed layer on this page, and 2 inches suit paths and top-ups. Pecan hulls are tough and fibrous, so a 3-inch spread holds its depth well, though the pieces still break down unevenly; if thin spots appear, top them up rather than re-laying the whole bed.
Does pecan hull mulch introduce weed seeds?
Pecan hulls are organic, so a load can carry a few weed seeds; weeds can still root in the dust and debris that collects on top of it, so use fabric underneath and clear the debris. This calculator prices volume only and does not judge the gardening choice.
What if my bed is not a rectangle?
Split it into rectangles, measure each, and add the areas before entering the total. A circle uses radius times radius times 3.14. Guessing one number for an irregular bed is the most common reason orders come up short.
Why order 224 yards when the exact figure is 223.06?
Because mulch is sold by the whole yard, and 223.06 rounds up to 224 — the order carries 0.94 yards of headroom for spillage and uneven ground. That headroom is the buffer the exact figure does not have.
Can I use this chart for other mulch types?
The volume math is the same for any loose mulch — area, depth and waste convert the same way — but settling and coverage differ by material. Pecan hulls break down slowly, so use the pecan hull rows for pecan hull and the matching chart for stone or wood chips.