Result
2.61 cu yd soil
The beds need about 2.61 cu yd soil after the entered settling allowance.
- Total soil volume
- 70.4 cu ft
- Bags to buy
- 36 bags
- Estimated bag cost
- 288 $
- Estimated bulk cost
- 130.37 $
- Compost share
- 21.12 cu ft
Estimate only. Confirm measurements, package or equipment specifications, weather and site conditions, buried utilities, drainage and electrical safety, local rules, and an appropriate material or capacity margin before ordering or building. Read the full disclaimer.
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Optional equipment checkWhat to compare before buying
Compare bagged soil, compost, and amendments by bag volume, ingredient mix, drainage, settling, plant needs, and the bag count or compost share in the result.
Buying checklist
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- Cost
- Free
- Login
- Not required
- Best use
- Estimate raised-bed soil by cubic feet, cubic yards, and bags, then compare bagged and bulk cost with settling allowance and a compost share.
- Output
- Browser result with print and PDF options
Result summary
Quick answer
With the sample inputs, this calculator returns 2.61 cu yd soil. Total soil volume: 70.4 cu ft. Use 2.61 cu yd soil as the first outdoor planning quantity, then check the detailed material, volume, flow, water-use, or cost results and confirm the site conditions before ordering or digging.
Instructions
How to use this calculator
Open the short walkthrough for choosing and checking inputs.
The calculator multiplies each bed's length, width, and soil depth, scales by bed count, adds settling allowance, and converts the result into bulk yards and full bags.
Page guide
On this page
Jump directly to the part of the calculator you need.
Calculation details
Formula and methodology
See the exact math used to produce the result.
Soil volume = bed length x bed width x soil depth x bed count x the settling allowance, converted from cubic feet to cubic yards or full bags.
Before acting
Assumptions to check
Review the real-world details that can change the estimate.
The key inputs are Bed length, Bed width, Soil depth, Number of beds, Settling allowance, bag size and price, bulk price, and compost share. Measure inside the boards, keep all beds on the same depth assumption, and confirm settling, mix ingredients, moisture, bulk-delivery minimums, truck access, and whether bags are labeled by dry or compressed volume.
More guidance Examples, methodology, and planning checks Open the worked example, review notes, reference tables, and practical next checks.
When to round up
Round up for uneven bed bottoms, settling, spillage, delivery minimums, and a small top-off reserve; confirm the soil mix is appropriate for the plants.
When to use this calculator
- Estimating materials before shopping
- Checking project coverage and waste
- Building a simple supply list
Tips for better estimates
- Measure twice and write down the units.
- Check product coverage and package sizes before shopping.
- Add waste for texture, touch-ups, pattern matching, and measurement error.
How this estimate was built
This page multiplies the inside dimensions and count of matching beds, applies a settling allowance, converts the result to cubic feet and cubic yards, rounds bags up to whole units, and compares entered bag and bulk prices.
Worked example
Example inputs: Bed length: 8 ft; Bed width: 4 ft; Soil depth: 12 inches; Number of beds: 2; Settling allowance: 10 %; Bag size: 2 cu ft; Price per bag: $8; Bulk price: $50 /cu yd; Compost share: 30 %. With those values, the calculator returns 2.61 cu yd soil. The beds need about 2.61 cu yd soil after the entered settling allowance.
Project size to estimated materials
| Small room or repair | Measure carefully and buy one practical unit above the estimate |
|---|---|
| Medium project | Check product coverage and round up to full units |
| Large or irregular area | Add a project-specific buffer before buying |
| Patterned or irregular work | Use a larger waste factor before buying |
Example scenarios
- Two 8-by-4-foot beds filled 12 inches deep need 64 cubic feet before settling allowance.
- With 10% extra for settling, the plan becomes 70.4 cubic feet, or about 2.61 cubic yards and 36 two-cubic-foot bags.
- At the sample prices, bags cost $288 while the volume-priced bulk soil is about $130.37 before delivery fees or minimum-order rules.
Quick reference chart
| Sample result | 2.61 cu yd soil |
|---|---|
| Total soil volume | 70.4 cu ft |
| Bags to buy | 36 bags |
| Estimated bag cost | 288 $ |
| Estimated bulk cost | 130.37 $ |
| Best next step | Compare the result with the measurements, product coverage, full-unit sizes, site conditions, and project instructions before buying supplies. |
FAQs
Raised Bed Soil Calculator questions
Can I use this as a final shopping list?
Use it as a planning estimate, then compare the result with your measurements, product coverage, site conditions, full-unit sizes, and project instructions.
Should I add a safety margin?
Usually yes. Add a buffer for measurement error, damaged material, layout changes, products sold in full units, and the extra material that fits this specific project.
What should I check before buying?
Check measurements, product coverage, package size, prep needs, compatible tools, fasteners, trim pieces, or other supplies the project requires.
Can this replace professional construction advice?
No. For structural, electrical, plumbing, roofing, or safety-critical work, confirm with a qualified professional.
Is the raised bed soil calculator exact?
No. It is a project planning estimate. Compare it with your measurements, product coverage, site conditions, full-unit sizes, and project instructions.
What inputs matter most?
Bed dimensions, bed count, settling allowance, bag size, prices, and compost share determine the quantity and comparison.
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Common planning mistakes
Skipping the right project buffer, measuring once, ignoring product limits, and forgetting the extra supplies or prep work that apply to this material.
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