A Layout Diagram (Floor Plan) is a 2D/3D engineering drawing that optimally places various storage equipment (racks, automated warehouses, etc.), operational areas (inspection, packing, sorting, etc.), transport material handling equipment (conveyors, sorters, etc.), operational aisles, and buffer spaces within a distribution center's architectural space (building, pillars, walls, docks)
If layouts are drawn relying solely on intuition or experience, fatal problems arise—such as "insufficient storage racks," "operational areas being too narrow causing bottlenecks," or "forklift aisles intersecting causing traffic collision accidents" To create an excellent layout diagram, quantitative grounds based on data analysis (EIQ analysis) are indispensable
In Tera Calculation, rather than drawing blueprints abruptly from numerical data, layout diagrams are derived through an extremely logical, step-by-step procedure: 【EIQ Analysis】 ──> 【EIQ Matrix Table Generation】 ──> 【Logistics Equipment Allocation】 ──> 【Integration into Logistics Flow Diagrams】 ──> 【Layout Diagram Completion】
Generate a "25-block EIQ matrix table" intersecting 5 item ranks × 5 destination ranks for target day shipping data Separate whole-case "Case Shipping" from fractional "Piece Shipping," clarifying cargo volume concentration from high-flow to low-flow zones
Systematically allocate optimal storage and operational equipment based on item rank characteristics across the 25 blocks For example, assign automated warehouses (PL_AS/RS) or case sorters to high-moving A1 ranks, pallet racks or flow racks to medium-moving B ranks, and medium/light-duty shelving to low-moving D ranks Through this, storage capacities (pallet counts, shelf tier counts) and throughput volumes (cases/hour, pick lines/hour) that each piece of equipment must hold are directly calculated
Structure material flow lines passing through each process (Inbound Dock ──> Storage Area ──> Replenishment Line ──> Picking Zone ──> Sorting/Packing ──> Outbound Dock) as a "logistics flow diagram attached with numerical data (pallet counts, case counts, line counts, volume m³)" Visualizing volume transfer balances between processes and throughput peaks across time axes clarifies zone placement relationships (adjacency) and flow lines within the building
Calculate required floor areas (m², sq ft) per zone by adding equipment pitch, machine units, operational aisle widths (forklift aisles 3.0–3.5m, worker aisles 1.2–1.5m, etc.), and operational area/buffer space margin ratios to "equipment throughput and storage volumes" established in the logistics flow diagram Fitting these area numbers into the building grid (column spans) completes the final floor plan layout diagram on CAD

In logistics system design, **persisting with a single layout plan from the outset is extremely dangerous** By creating **3–4 multiple comparison plans** with altered equipment selections or flow layouts and conducting simulations, the optimal plan (best practice) offering the best Return on Investment (ROI) can be extracted
Based on equipment capacity and required headcount calculated for each plan in Tera Calculation, initial investment amounts and running costs are quantitatively compared
Rather than merely "introducing state-of-the-art automated equipment," proving through numerical data **"whether the payback period falls within 5–7 years" and "whether future scalability accompanying business growth exists"** enables presenting proposals with unwavering persuasiveness to executive management and client shippers