Waste & Scrap Cost Calculator

Track TIMWOODS 8 Wastes & Calculate Waste Reduction ROI

Lean Manufacturing & Waste Tracking: This calculator helps identify and quantify the 8 wastes (TIMWOODS) in your manufacturing operations: Transport, Inventory, Motion, Waiting, Overprocessing, Overproduction, Defects, and Skills (unused talent). Track scrap costs, calculate scrap metal recovery value, and calculate ROI for waste reduction initiatives. Optimised for South African manufacturing context with ZAR currency and local scrap metal prices.

Material Scrap

Material Type

Material Cost (R/kg)

Scrap Quantity Per Month (kg)

Scrap Rate (%)

Target: <5% for efficient operations

Scrap Recovery

Scrap Metal Type

Recoverable Scrap Quantity (kg/month)

Current SA price: R3-5/kg

Rework Costs

Rework Hours Per Month

Labour Rate (R/hour)

Rework Material Cost (R/month)

Overhead Multiplier

Typical: 1.5x (includes overhead costs)

8 Wastes (TIMWOODS)

Estimate monthly cost for each waste category

🚛 Transport

Unnecessary movement of materials, parts, or information

📦 Inventory

Excess stock that ties up capital and space

🚶 Motion

Unnecessary movement of people (walking, reaching, searching)

⏳ Waiting

Idle time waiting for materials, information, or equipment

⚙️ Overprocessing

Doing more work than customer requires

📊 Overproduction

Producing more or earlier than needed

❌ Defects

Errors, rework, scrap, and warranty claims

🎓 Skills (Unused Talent)

Underutilizing employee knowledge and abilities

Other Costs

Waste Disposal Cost (R/kg)

Environmental Levy (%)

Company Info

Monthly Revenue (R)

Number of Employees

Waste Reduction Initiative

Implementation Cost (R)

Expected Savings (%)

Typical lean initiatives: 15-35% waste reduction

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Enter your waste data, TIMWOODS costs, and click calculate to see comprehensive waste cost analysis and reduction opportunities.