Wastage & Rework Calculator
See the true hidden cost of material wastage, site rework, and buyer-caused changes on your construction project.
Project Inputs
Four essentials. Tune the rest anytime in Advanced Settings.
Total contract / build value of the project.
Apartments or units in the project.
Idle site, financing & penalty cost for each delayed day.
Material Wastage
Rework Breakdown
Labor cost per rework incident.
Material cost per rework incident.
Equipment cost per rework incident.
Overhead cost per rework incident.
Total number of rework incidents expected.
Buyer Change Orders
Average cost per change order.
Average delay per change order.
Stop leaking margins to rework
Mellite cuts buyer-caused rework by up to 80% with locked specs & automated procurement.
Explore MelliteTotal Cost Impact
₹29.73 L
Combined wastage, rework & change-order costs
Total Wastage Cost
₹4,73,500
Total Rework Cost
₹14,50,000
Total Change Impact
₹10,50,000
Potential Savings
₹8.20 L
20% less wastage · 50% less rework
Wastage Breakdown
How to Use the Wastage & Rework Calculator
Enter project basics
Input your project value, total units, rework rate, and daily delay cost. These are the core drivers of wastage and rework costs.
Review total cost impact
The right panel shows your total cost impact immediately — combining wastage, rework, and buyer change orders. No need to wait or scroll.
Dive into details
Expand Advanced Settings to see material-level wastage, rework breakdown by category, and buyer-driven change orders. Understand exactly where money leaks.
Why Use the Wastage & Rework Calculator?
Find Hidden Costs
Wastage and rework are often invisible in project budgets. This calculator quantifies them so you can take action.
Target Improvements
See your savings potential if you reduce wastage by 20% and rework by 50%. Set realistic targets for your site teams.
Buyer Change Impact
Understand the true cost of post-lock buyer changes — not just the direct cost, but delay costs and schedule impact.
Build the Business Case
Use the numbers to justify investments in better processes, technology, and vendor management that reduce wastage.
How the Wastage & Rework Calculator Helps You
For Site Engineers
Identify which materials have the highest wastage rates and prioritize process improvements. Track rework incidents and their cost impact on the project.
For Project Managers
Quantify the cost of buyer-caused changes and delayed decisions. Use the data to negotiate better change-order terms and reduce approval times.
For Developers
Understand the total cost of poor coordination between buyers, site teams, and procurement. Invest in platforms that reduce these gaps.
Frequently Asked Questions
Answers to common questions about estimating wastage and rework.
Understanding Wastage
Stop Leaking Margins to Rework
This calculator shows the cost. Mellite stops it — with locked specs, automated procurement, and real-time tracking that eliminates 80% of buyer-caused rework.
Locked Specifications
Buyer selections are finalized before construction starts. No more post-lock changes, no more rework.
Auto BOM Generation
Every selection generates a unique Bill of Materials automatically. Zero manual entry, zero errors.
Real-Time Tracking
Track selections, procurement, and delivery in one dashboard. Catch issues before they become rework.
Download PDF Report or Embed on Your Website
Export an official specification report or embed this interactive calculator widget on your architecture/interior blog with a 1-click iframe snippet.
Match Materials With Tier-1 Manufacturers & Capture Factory Rebates
Bypass distributor markups. Mellite Vendor Match connects your site procurement directly with top building material factories across India.
Transform Free Calculators Into Automated Real Estate Procurement
Book an enterprise demo or join the waitlist to see how Mellite connects your BOQs directly with tier-1 manufacturers across India.