Description
Calculate center spacing from a stone length and signed edge gap.
Landscape geometry distinguishes plan area, depth, void fraction, grade, center spacing and nominal clearances. A horizontal-per-vertical slope is the inverse orientation of rise/run, and post counts differ from bay counts. Supplied geometric terms do not establish stability, drainage, accessibility or safe construction.
Calculate center spacing from a stone length and signed edge gap.
When to use this tool
Use Stepping Stone Center Gap Spacing when you already have stoneLength, edgeGap and need to calculate center spacing from a stone length and signed edge gap.
How to use the tool and how it works
- Enter stoneLength, edgeGap. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read centerSpacing. Use the output convention below.
Require stoneLength>=0 and stoneLength+edgeGap>=0; return their sum.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| stoneLength | Stone Length | Required. Finite number; minimum 0. |
| edgeGap | Signed gap; overlapping stones are allowed when resulting center spacing is nonnegative. | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| centerSpacing | Center Spacing | Required. Finite number. |
{
"input": {
"stoneLength": 40,
"edgeGap": 15
},
"output": {
"centerSpacing": 55
}
}Limitations and assumptions
- Negative edge gaps are accepted when the sum remains nonnegative; no actual overlap, accessibility or suitable walking spacing is established.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use a verified site survey and complete dimensioned layout for a landscape design. Include material behavior, drainage, ground conditions and the applicable requirements when local volumes, grades or spacing calculations cannot answer the full question.
References
Similar or alternative tools
- Fence Post Bay Equal Spacing
Calculate equal fence-post bay spacing over a supplied run.
- Paving Edge Cutoff Length
Calculate paver length remaining after a supplied cutoff.