Volume Calculation:
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This calculator helps determine the amount of soil needed for raised garden beds by calculating the volume based on length, width, and depth measurements. It's essential for proper garden planning and soil ordering.
The calculator uses the volume equation:
Where:
Explanation: The equation calculates the total volume in cubic feet and converts it to cubic yards (since soil is often sold by the cubic yard).
Details: Proper soil calculation ensures you order the right amount of soil - not too little (which would leave your bed incomplete) or too much (which would be wasteful and expensive).
Tips: Measure your raised bed dimensions accurately in feet. Typical depths range from 0.5 feet (6 inches) to 2 feet (24 inches) depending on what you're planting. Remember that soil settles over time.
Q1: How much extra soil should I order?
A: It's recommended to order 10-15% more than calculated to account for settling and compaction.
Q2: What's the ideal depth for a raised bed?
A: Most vegetables need 12-18 inches. Root crops need 18-24 inches. Herbs can grow in 6-12 inches.
Q3: How do I convert cubic feet to bags of soil?
A: Most bagged soil is sold by cubic foot (check label). Divide your total cubic feet by the bag size.
Q4: Should I include paths in my calculation?
A: No, calculate only the growing areas. Paths between beds shouldn't be included.
Q5: How often should I replenish soil?
A: Top up with 1-2 inches of compost annually. Full replacement every 3-5 years depending on use.