Garden Bed Math · Purchase log
Soil and mulch purchase record
Yard: Season:
| # | Step | Done | Date |
|---|---|---|---|
| 1 | List each job: L x W (ft), depth (in) | ||
| 2 | Cu ft = sq ft × depth (in) ÷ 12 | ||
| 3 | Add up jobs that use the same material | ||
| 4 | Read the unit on each label or quote | ||
| 5 | Dry quarts ÷ 25.71 = cu ft; liters ÷ 28.32 | ||
| 6 | Cubic yards × 27 = cu ft | ||
| 7 | Sold by the ton? Ask lb per cubic yard | ||
| 8 | Bags: price ÷ cu ft per bag | ||
| 9 | Bulk: (price + delivery) ÷ (yards × 27) | ||
| 10 | Compressed bale? Note it, don't add it | ||
| 11 | Log date, store, count, cu ft, $ per cu ft | ||
| 12 | End of season: note what's left over |
Notes:
Source: NIST Handbook 130 (2026), Uniform Regulation for the Method of Sale of Commodities, checked October 11, 2026. Planning record, not a guarantee. Which material suits a job: ask your county extension office. · gardenbedmath.com/soil/purchase-record/