How a fabrication quote should show material loss on its own line
Pricing only finished part area understates the sheet bought. Split purchased stock, shipped parts, and leftover on the quote.
Material cost
Turning wasted area or wasted length into a cost, without mixing it with machine time.
How Kerf Loss Grows When the Same Cut Is Repeated Thousands of Times
One kerf slot is easy to miss on a prototype. On a production run the same slot stacks into extra sheets. Recount waste when the order quantity changes.
How to Turn Sheet Waste Into a Cost for One Batch
Multiply wasted sheet area by that sheet's price. Count kerf, trim, and unused offcut as material; keep machine time separate.