What is triangular (offset) spacing?

Triangular spacing staggers every other row by half the spacing distance, fitting each plant into the gap of the row above. This increases plant density by about 15% compared to a square grid.

Should I use feet or meters?

Use whatever unit your seed packet or nursery tag lists. The tool accepts both — just make sure all three inputs (bed width, bed length, plant spacing) use the same unit.

Does the calculator account for edge borders?

Yes. The first plant starts at half the spacing distance from each edge, which is standard horticultural practice to maintain even spacing on the border.

Which pattern is better for vegetables?

Triangular spacing is generally better for compact crops like lettuce, carrots, and herbs because it uses space more efficiently. Square grid is easier to weed and works well for larger plants that need clear row access.

What if my spacing is in inches?

Divide inches by 12 to convert to feet. For example, 6-inch spacing = 0.5 ft. A future update will add an inch input option.

Plant Spacing Calculator

Enter your bed size and plant spacing to instantly see how many plants fit using square or triangular layout patterns.

Garden Bed Settings

Unit System

Bed Width (ft)

Bed Length (ft)

Plant Spacing (ft)

Center-to-center distance between plants

Layout Pattern

Square Grid

Plants in straight rows and columns

Triangular Offset

Staggered rows — ~15% more plants

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Total Plants

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Rows

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Plants per Row (avg)

Layout Details

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Bed Area

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Plants / sq unit

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Pattern

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Spacing

Visual Preview

Each dot = 1 plant (capped at 500 for display)

Enter values and click Calculate to see the layout.

Summary

This tool calculates how many plants fit inside a rectangular garden bed based on the bed's width and length, the desired spacing between plants, and the planting layout pattern. Square grid spacing places plants in straight rows and columns, while triangular (offset) spacing staggers every other row to pack roughly 15% more plants in the same area.

How it works

Enter your garden bed width and length in feet or meters.
Enter the recommended spacing distance between plants.
Choose a unit system (feet or meters).
Select a layout pattern: Square Grid or Triangular Offset.
The calculator instantly displays total plant count and a visual grid preview.

Use cases

Plan a raised bed before buying seedlings or seeds.
Compare square vs. triangular planting to maximize yield.
Estimate seed or transplant quantities for large plots.
Optimize spacing for dense crops like lettuce or herbs.
Calculate plant counts for flower beds and ornamental gardens.
Teach students how planting geometry affects density.

Frequently Asked Questions

Last updated: 2026-05-29 · Reviewed by Nham Vu