How Many Rows in a 20-Foot Garden Bed at 12-Inch Spacing?
A 20-foot bed with 12-inch row spacing holds approximately 20 rows of plants.
How to use this tool
- Enter the garden bed length in feet (the direction rows run across).
- Enter the spacing between row centres in inches.
- The calculator returns the number of rows that fit and the total span they occupy.
Calculate the exact number of rows for a 20-foot garden bed planted with crops spaced 12 inches apart.
Frequently asked questions
- How many rows fit in my garden bed?
- Divide the bed length by the row spacing in feet, then add 1 for the first row. Example: a 20 ft bed with 18-inch spacing: 20 ÷ 1.5 = 13.3, plus 1 = 14 rows.
- What is the best row spacing for vegetables?
- Spacing depends on the crop: lettuce 12 in, carrots 12–18 in, peppers 18 in, tomatoes 24–36 in. Check your seed packet or variety recommendations.