Compact Shelving Space Saving Percent Calculator

Compare equal caller storage-run capacity including independently declared access aisles, retaining signed compact-layout saving; no engineering floor loading, emergency access or safe layout approval.

Description

Storage layouts should be compared at equal shelf-run capacity with aisles included.

Storage layouts should be compared at equal shelf-run capacity with aisles included. A compact layout can still have a negative saving.

When to use Compact Shelving Space Saving Percent Calculator

Use this tool to compare equal caller storage-run capacity including independently declared access aisles, retaining signed compact-layout saving; no engineering floor loading, emergency access or safe layout approval.

Prepare the collection, exposure, scheduling or financial records required for this calculation. Keep row order and the declared units consistent.

How to use Compact Shelving Space Saving Percent Calculator and understand its results

Prepare the collection, exposure, scheduling or financial records required for this calculation. Keep row order and the declared units consistent.
Enter requiredShelfRunM, fixedShelfFootprintM2, compactShelfFootprintM2, fixedAccessAisleM2, compactAccessAisleM2 using the field table and calculation rules, then run the tool.
Read fixedTotalFloorAreaM2, compactTotalFloorAreaM2, signedEquivalentCapacityAreaSavingPercent, fixedShelfRunPerTotalM2, compactShelfRunPerTotalM2. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
requiredShelfRunM	Required shelf run m	number	Required
fixedShelfFootprintM2	Fixed shelf footprint m2	number	Required
compactShelfFootprintM2	Compact shelf footprint m2	number	Required
fixedAccessAisleM2	Fixed access aisle m2	number	Required
compactAccessAisleM2	Compact access aisle m2	number	Required

Use positive equal required run and shelf footprints with nonnegative aisle areas. Return totals, signed saving and each layout's run per total m².^[1]

saving percent = 100 × (fixed total area − compact total area)/fixed total area

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
fixedTotalFloorAreaM2	Fixed total floor area m2	number
compactTotalFloorAreaM2	Compact total floor area m2	number
signedEquivalentCapacityAreaSavingPercent	Signed equivalent capacity area saving percent	number
fixedShelfRunPerTotalM2	Fixed shelf run per total m2	number
compactShelfRunPerTotalM2	Compact shelf run per total m2	number

json

{
  "input": {
    "requiredShelfRunM": 100,
    "fixedShelfFootprintM2": 100,
    "compactShelfFootprintM2": 50,
    "fixedAccessAisleM2": 20,
    "compactAccessAisleM2": 30
  },
  "output": {
    "fixedTotalFloorAreaM2": 120,
    "compactTotalFloorAreaM2": 80,
    "signedEquivalentCapacityAreaSavingPercent": 33.333333333333336,
    "fixedShelfRunPerTotalM2": 0.8333333333333334,
    "compactShelfRunPerTotalM2": 1.25
  }
}

Limitations and assumptions

Floor loads, emergency access and engineering suitability are not approved.

Numbers and computed results must be finite; overflow produces an error. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Store Environmental Zone Capacity Utilisation Checker: Audit committed environmental-zone volume deficits without treating surplus in an incompatible zone as a local solution; unlike slot occupancy, incoming reserved volume is explicit. For a complementary task, use Collection Storage Occupancy Percent Fill Rate Calculator: Keep occupied/usable/blocked storage slot inventories and unequal store denominators separate; physical empty slots are not all usable conservation capacity.

References

Compact Shelving Space Saving Percent Calculator — tool.io

Similar or alternative tools

Store Environmental Zone Capacity Utilisation Checker
Audit committed environmental-zone volume deficits without treating surplus in an incompatible zone as a local solution; unlike slot occupancy, incoming reserved volume is explicit.
Collection Storage Occupancy Percent Fill Rate Calculator
Keep occupied/usable/blocked storage slot inventories and unequal store denominators separate; physical empty slots are not all usable conservation capacity.