Bags of Topsoil Per Cubic Yard — Quick Reference
| Bag Size | Bags per Cubic Yard | Best For |
|---|
| 1 cu ft bag | 27 bags | Small patch repairs, potted plants |
| 1.5 cu ft bag | 18 bags | Small flower boxes, small repairs |
| 2 cu ft bag (most common) | 13.5 bags (order 14) | Garden beds, raised beds up to 1 yard |
| 3 cu ft bag (large) | 9 bags | Large raised beds, multiple projects |
Bags vs Bulk — When to Buy Each
Buy bagged when you need less than 1 cubic yard or delivery isn’t feasible. Buy bulk for more than 1 cubic yard — bulk is 40–60% cheaper than bagged per cubic yard even after delivery fees. A pickup truck bed holds approximately 2–3 cubic yards maximum — but check your payload limit first.
How Much Does Topsoil Weigh?
| Soil Type | Per Cubic Yard | Per Cubic Foot |
|---|
| Dry topsoil (loose) | ~2,000 lbs (1 ton) | ~74 lbs |
| Wet / compacted topsoil | ~2,500–3,000 lbs | ~93–111 lbs |
| Garden soil (topsoil + compost) | ~2,160 lbs | ~80 lbs |
| Compost (alone) | ~1,000–1,400 lbs | ~40–52 lbs |
| Fill dirt | ~2,200–2,700 lbs | ~80–100 lbs |
Pickup Truck Weight Warning
A full cubic yard of wet topsoil can weigh over 1.5 tons — beyond the payload capacity of most pickups (1,000–2,000 lbs). For orders over 1 yard, use delivery, a dump trailer rental, or multiple small loads. Always check your truck’s payload rating before loading bulk topsoil.
Settling Factor — Why You Need Extra Topsoil
Topsoil settles over time as air pockets compress and organic matter decomposes. Industry standard: one-third of topsoil volume will settle over the first growing season in raised beds and new garden areas.
| Project Type | Expected Settling | Recommended Extra |
|---|
| Lawn topdressing | Minimal | +5% |
| Seeding new lawn | 10–15% | +10–15% |
| Flower and vegetable beds | 10–20% | +10–15% |
| New raised beds | 20–33% | +15–20% |
| Grading and leveling | 10–15% | +10–15% |
Raised Bed Soil Mix Ratios
Standard Raised Bed Mix (most popular)
60% topsoil + 30% compost + 10% perlite or vermiculite
Affordable, widely available, good drainage. Use screened topsoil or quality garden soil as your base.
Mel’s Mix (square-foot gardening)
1/3 compost + 1/3 peat moss + 1/3 vermiculite
Lightweight, excellent drainage, virtually weed-free. More expensive but no soil needed — a soilless growing medium ideal for intensive gardens.
8 Topsoil Buying Tips
1. Always order 10–15% more than your calculationSettling, spillage, and minor measurement errors mean you’ll need more than the mathematical minimum. A second delivery charge costs more than the extra topsoil.
2. Use bulk for any order over 1 cubic yardBulk topsoil ($25–60/yard delivered) is 40–60% cheaper than bagged equivalents. For any project over 27 cubic feet, bulk is almost always significantly cheaper.
3. Test your existing soil before adding topsoilA $10–20 soil test reveals pH, nitrogen, and nutrient levels. Adding topsoil to highly acidic or alkaline soil without testing can create more problems than it solves.
4. Never use fill dirt as the base for raised bedsFill dirt has no organic matter and poor drainage. Use screened topsoil or a blended garden mix for all growing areas. Fill dirt is only appropriate for the bottom of very deep raised beds (18″+ total depth).
5. Ask about source and composition when buying bulkBulk topsoil quality varies enormously. Ask if it’s screened, what the organic matter percentage is, and where it comes from. Low-quality topsoil may contain weed seeds, debris, or clay-heavy subsoil.
6. Add compost every season, not just at installationEven the best topsoil loses organic matter over time. Top-dress with 1–2 inches of compost each spring — more effective than replacing soil every few years.
7. Know your truck’s payload limit before loadingMost pickup trucks have a 1,000–2,000 lb payload limit — equal to about 1 cubic yard of wet topsoil maximum. Check your truck’s door sticker for its specific payload rating.
8. Use this calculator before your first material runCalculate before you go. Running short mid-project means a second delivery fee and potential color/batch mismatches in screened topsoil. 2 minutes of calculation saves hours of frustration.