Skip to main content

Methodology

Pick & Pack Capacity Planner methodology

Find labour capacity required for peak order volume.
Duc Nguyen X.By Duc Nguyen X.· Founder, Margin101Last reviewed: View update historyMethodology

Educational only: Business decision support, not accounting, tax or legal advice.

Privacy: Calculations run locally; Margin101 does not receive your commercial inputs.

Update policy: Reviewed when formulas or official dependencies change.

Scope: Market-neutral small-business planning using your own assumptions.

1. Formulas and units

Productive Hours
productiveHours = workers × paid hours × productive rate

Where

workers
Workers (operational units)Source: Business record
productiveHours
Productive Hours (units)Source: Calculated output
Pick Capacity
pickCapacity = productive hours × picks per hour

Where

picksPerProductiveHour
Picks per productive hour (operational units)Source: Business record
productiveHours
Productive Hours (units)Source: Calculated output
pickCapacity
Pick Capacity (units)Source: Calculated output
Order Capacity
orderCapacity = floor(pick capacity / picks per order)

Where

picksPerOrder
Picks per order (operational units)Source: Business record
pickCapacity
Pick Capacity (units)Source: Calculated output
orderCapacity
Order Capacity (units)Source: Calculated output
Capacity Gap Orders
capacityGapOrders = max(0, demand orders − order capacity)

Where

demandOrders
Peak demand orders (operational units)Source: Business record
orderCapacity
Order Capacity (units)Source: Calculated output
capacityGapOrders
Capacity Gap Orders (units)Source: Calculated output
Utilisation Rate
utilisationRate = demand orders / order capacity

Where

demandOrders
Peak demand orders (operational units)Source: Business record
orderCapacity
Order Capacity (units)Source: Calculated output
utilisationRate
Utilisation Rate (decimal rate)Source: Calculated output

Money inputs and outputs use the currency selected in the scenario without changing the canonical methodology. Rates, margins, utilisation and buffers are entered as percentages and converted to decimal values for calculation.

2. Worked example

Input assumptions

The worked rows below come directly from the registered engine and visible default fixture.

Calculation and outputs

Example

The worked rows below come directly from the registered engine and visible default fixture.

Productive Hours
600
Pick Capacity
30,000
Order Capacity
10,000
Capacity Gap Orders
2,000
Utilisation Rate
120%

The exact engine-derived outputs are shown in the labelled rows below.

Interpretation

The peak capacity gap compares order demand with productive labour time, measured pick speed and picks required per order.

3. Validation and boundary checks

  • All values must be finite and inside the visible validation boundaries.
  • Rates are entered as percentages and calculations retain decimal precision.
  • Money uses one consistent ex-tax currency and planning period.

4. Assumptions and source classification

  • Provider fees, exchange rates, return behaviour and operating performance are user-entered scenarios.
  • No provider plan, jurisdiction, tax rate or market benchmark is embedded.
  • The engine retains full precision and display formatting never feeds back into calculation.

This planner has no current policy-data dependency. Its commercial assumptions are user supplied. Registered family-level regression suites exercise the shared business-logic engine and worked-result reconciliation.

5. Limitations

  • The model does not forecast demand, provider changes, exchange rates or operational performance.
  • It does not replace accounting, tax, legal or financial advice.

This is educational decision support, not tax, accounting, legal or financial advice. Check the treatment of your actual transactions under the rules that apply to your business and seek qualified advice where appropriate.

6. Update and evidence policy

Registered family-level suites test formula invariants and example reconciliation; the release ledger records that coverage without claiming a separate oracle for every line of public copy. There is no official threshold or benchmark to refresh for this planner. Commercial inputs remain user-supplied because they vary by business and contract.

Change history

  1. : Initial public release of the Warehouse Pick & Pack Capacity planner and methodology.

Related reading

Guides to interpret the decision and its assumptions.

Return to the planner