In brief
Robust warehouse planning follows six steps: analyse data, define requirements, select technologies, dimension layout and capacity, evaluate economics, and prepare specifications and tendering. The steps are iterative because technology, process and space influence one another.
1. Data analysis and volume model
Item master data, inventory, receipts and issues, order lines and seasonal patterns form the basis. ABC and XYZ classes, size and weight groups, and order profiles show which items can be handled together. Outliers are not simply deleted; they are explained operationally.
2. Define requirements
Service level, throughput, inventory coverage, growth, redundancy and working-time models are translated into verifiable requirements. At least three volume perspectives are useful: average, planned peak and stress scenario. This prevents a solution from working for only one load case.
3. Select technology
Technology follows the process and item spectrum. Shelving, pallet racking, mini-load AS/RS, shuttle systems, AMRs and compact bin systems are compared against the same requirements. Our technology comparison explains the main differences.
4. Layout and dimensioning
Storage locations, buffers, workstations, conveyors, traffic routes and expansion areas are integrated. A simple basic rule is: required capacity = peak demand ÷ effective output per unit. Availability, shift time, breaks, disruptions and safety allowances must remain transparent.
5. Evaluate economics
Investment is only one factor. Labour, maintenance, energy, spare parts, space, IT, ramp-up and residual value belong in a comparable life-cycle calculation. Sensitivity analyses show at which growth or labour requirement the ranking of variants changes.
6. Specifications and tendering
The specification describes function, performance, interfaces, acceptance criteria and documentation — not a product's marketing name. Comparable bid structures and a disciplined clarification process reduce later claims and variations.
Warehouse planning data checklist
- Item number, dimensions, weight, load carrier and special characteristics
- Inventory, receipts, issues and order lines for a representative period
- Service levels, cut-off times, returns and special processes
- Building, areas, heights, columns, doors, fire protection and traffic routes
- Growth scenarios, shift models and acceptable operational interruptions
Learn more about our warehouse planning, data collection and the glossary entry on dimensioning.