Layout model and usable dimensions
Edging is purchased in lengths, while a garden bed is usually measured as a shape. This calculator converts a rectangular or circular outline into perimeter, subtracts access gaps and rounds to full edging sections. It then estimates section joints and stakes from your entered fastening interval. The estimate treats the edging as one continuous run after gaps are deducted; multiple separate beds can require extra end stakes. Bends, corner fittings, connectors and buried depth should be checked for the specific edging system.
Fit, direction and offcut constraints
- Corners can require fittings or a product-specific bending radius.
- A zero opening models a closed loop and includes its closing overlap and joint. Multiple separate openings require separate run takeoffs.
- Stake spacing comes from your system instructions rather than a universal rule.
Layout arithmetic and example
A worked example
A 20 × 8 ft bed minus a 4 ft access gap needs 52 ft of edging. With 8 ft sections and 2 in overlaps, purchase 7 sections.
Measure and compare a layout
- Choose the bed outline and measure gaps.
- Enter section length and any joint overlap.
- Check connectors, end stakes and corner accessories for the final layout.
Frequently asked questions
Does it allow a gap for a path?
Yes. Subtract all open gaps from the outline length.
Do overlapped sections cover less distance?
Yes. Overlap is deducted at every connection in the modeled run.
Is the stake count exact for several beds?
No. Separate runs and closed loops can change end and corner fastening counts.
Calculation method: JICWH methodology. Examples are planning assumptions, not product recommendations.