Supply Chain Network Optimization
A comprehensive supply chain network model with 17 worksheets covering plant allocation, distribution center optimization, transport costs, tariffs, and landed cost analysis.
Click the tabs at the bottom to navigate between worksheets.
Supply chain network design determines where to source, produce, store, and distribute products — decisions that lock in cost structures for years. Getting the network right can save millions; getting it wrong creates persistent inefficiency that's expensive to fix.
This model provides a structured framework for analyzing and optimizing supply chain networks. Map your plants, distribution centers, and demand points. Define transport costs, tariffs, and capacity constraints. The allocation engine finds the lowest-cost way to serve demand while respecting capacity limits. Run scenario analyses to evaluate new facility locations, nearshoring strategies, or the impact of tariff changes — all within Excel.
What's Inside
The model contains 17 integrated worksheets. Here's what each one does and why it matters.
Cover
Model overview with network scope and analysis parameters. Covers network description, geographic scope and analysis period.
Instructions
Step-by-step guide for setting up and using the model. Covers data entry guide, workflow overview and output interpretation.
Assumptions
Global parameters including currency, cost rates, and planning horizon. Covers planning horizon, currency and unit settings, cost escalation rates and service level requirements.
Product Mix
Product catalog with unit costs, weights, volumes, and handling requirements. Covers product specifications, unit economics, handling requirements and product groupings.
Plant Master
Manufacturing facility data including capacity, costs, and capabilities. Covers plant locations and capacity, production costs per unit, capability matrix and utilization rates.
DC Master
Distribution center profiles with throughput capacity, costs, and service areas. Covers dc locations and capacity, handling and storage costs, service area definitions and throughput limits.
Demand Centers
Customer demand by location, product, and time period. Covers geographic demand mapping, product-level demand, seasonal patterns and growth projections.
Transport Matrix
Lane-level transportation costs between all origin-destination pairs. Covers plant-to-dc rates, dc-to-customer rates, mode of transport and transit times.
Tariffs & Duties
Import/export duties and trade compliance costs by origin-destination country pair. Covers duty rates by product/country, free trade agreement benefits, customs processing costs and trade compliance rules.
Capacity Planning
Matches demand to available capacity and identifies bottlenecks. Covers demand vs. capacity analysis, bottleneck identification, capacity expansion options and utilization forecasting.
Allocation Engine
Optimizes product flow through the network to minimize total cost while meeting demand and capacity constraints. Covers cost-minimizing allocation, capacity constraint handling, multi-echelon optimization and flow visualization.
Landed Cost
Calculates total landed cost per unit including manufacturing, transport, duties, and handling. Covers full cost stack per unit, cost breakdown by component, landed cost by lane and cost comparison across options.
Scenario Analysis
Compare alternative network configurations and evaluate strategic changes. Covers new facility evaluation, nearshoring analysis, tariff change impact and consolidation scenarios.
Sensitivity
Tests how cost and demand changes affect optimal network configuration. Covers transport cost sensitivity, demand volume changes, exchange rate impact and fuel cost scenarios.
Network Summary
High-level summary of the optimized network with key metrics. Covers total network cost, optimal flow pattern, facility utilization and cost per unit served.
Dashboard
Visual overview of the supply chain network with maps, charts, and KPIs. Covers network flow visualization, cost breakdown charts, utilization gauges and scenario comparison.
Error Checks
Validates data consistency and allocation feasibility. Covers demand-supply balance, capacity overflow check, cost reasonableness and data completeness.
Key Formulas & Methods
The model is built on established quantitative methods used by professionals worldwide.
Total Landed Cost
TLC = Manufacturing + Transport + Duties + Handling + Storage
The complete cost to deliver a unit from production to the end customer. The primary metric for network optimization.
Capacity Utilization
Utilization = Allocated Volume / Max Capacity × 100%
How much of a facility's capacity is being used. High utilization means efficiency; too high means risk of bottlenecks.
Transport Cost per Unit
TC = (Lane Rate × Distance × Volume) / Units
Per-unit transportation cost for a specific origin-destination lane, accounting for mode and distance.
Network Total Cost
NTC = Σ(Flow × Unit Cost) for all lanes
The total cost of serving all demand through the network. The objective function that the allocation engine minimizes.
How to Build This Model
Understanding how a model is constructed helps you customize it with confidence. Here is the methodology behind this template and what matters most at each stage.
1.Map the Current Network and Define Nodes
Start by documenting the existing supply chain network — every supplier, manufacturing plant, distribution center, and major customer location. For each node, capture capacity, fixed costs, variable costs per unit, and lead times. For each lane (connection between nodes), record transportation costs, transit times, and any constraints. This baseline map is essential because you cannot optimize what you have not measured. Most companies discover significant data gaps at this stage, and filling them is prerequisite to meaningful analysis.
2.Define Demand Patterns and Service Requirements
Aggregate customer demand by geography, product family, and time period. Map service level requirements — some customers need next-day delivery, others accept weekly shipments. These service constraints are non-negotiable inputs to the optimization; they determine which network configurations are feasible. Pay special attention to demand variability — peak season volumes may require fundamentally different network strategies than steady-state demand, and the model should account for both.
3.Build the Cost Model Across All Cost Categories
Total supply chain cost includes procurement, manufacturing, warehousing, transportation, and inventory carrying costs. Model each category explicitly — transportation costs depend on distance, mode, and volume; warehousing costs include fixed facility costs plus variable handling costs; inventory costs depend on stock levels and product value. The optimization can only find the true optimum if all cost categories are represented. Omitting a category (e.g., ignoring inventory costs) will bias the result toward solutions that look cheap on paper but are expensive in reality.
4.Run Optimization and Scenario Analysis
With the cost model built, run the network optimization to find the allocation of demand to facilities that minimizes total cost while respecting all capacity and service constraints. Then stress-test the optimal network with scenarios: What if a key facility goes offline? What if demand shifts by 20%? What if transportation costs spike? The scenarios reveal network resilience and help distinguish between solutions that are optimal under one set of conditions versus robust across many conditions. Resilience is often worth a small cost premium.
5.Evaluate Network Changes with Total Cost of Ownership
When the analysis recommends adding, closing, or relocating facilities, evaluate the full cost of change — not just the steady-state savings. Include one-time costs (facility construction, equipment relocation, severance), transition risks (service disruptions during changeover), and implementation timeline. Build a business case that shows cumulative cost and savings over a 5-10 year horizon. Many supply chain transformation projects fail because they underestimate transition costs or overestimate the speed of achieving the target state.
Who Is This For?
This model is designed for a range of professionals and use cases.
Supply Chain Directors. Design and optimize supply chain networks with data-driven analysis.
Logistics Managers. Evaluate transportation lanes, DC locations, and distribution strategies.
Operations Consultants. Deliver network optimization projects with a professional analytical framework.
Procurement Teams. Analyze total landed cost across sourcing options and supplier locations.
CFOs & Strategy. Evaluate the financial impact of network changes including new facilities and nearshoring.
International Trade Teams. Model the impact of tariffs, duties, and trade agreements on sourcing decisions.
Why Use This Model?
- —Optimize product flow through your network to minimize total landed cost
- —Evaluate new facility locations with full cost-benefit analysis
- —Model tariff and trade policy changes before they impact your supply chain
- —Identify capacity bottlenecks and plan expansions proactively
- —Compare nearshoring and reshoring scenarios with rigorous analysis
- —Understand landed cost breakdown by component for targeted cost reduction
- —Run what-if scenarios to test network resilience against disruptions
- —Comprehensive 17-worksheet framework covers every aspect of network design
Frequently Asked Questions
Tagged: supply chain · network optimization · logistics · transportation · landed cost · capacity planning · distribution · warehouse allocation