How do you calculate trim scrap cost?

Multiply scrap weight by resin cost and the capture factor, then add fixed handling. With 350 lb, $1.45/lb, 100% capture, and $75 handling: 350 x 1.45 x 1.00 + 75 = $582.50 total.

What does the cost capture factor mean?

It's the share of resin value actually lost. At 100% none of the scrap is recovered as usable regrind; at 40% you're crediting back 60% because most of it goes back into the process at value.

What is the per-pound scrap cost here?

Total cost divided by scrap weight: $582.50 over 350 lb is $1.66 per scrap pound, which runs above the $1.45 resin price because the fixed $75 handling is spread across the weight.

Why include a fixed handling charge?

Scrap costs more than the resin in it — grinding, sorting, labor, and disposal are largely fixed per batch. Folding in $75 here is what pushes the per-pound cost above the raw resin price.

How can I lower trim scrap cost?

Cut edge trim width, shorten startup purge, raise the capture factor by keeping regrind clean and reusing it, and reduce fixed handling by batching scrap. Each lever hits a different term in the formula.

Trim scrap cost vs total scrap rate — what's the difference?

Scrap rate is a percentage of production lost; trim scrap cost is the dollar value of that specific loss. This calculator converts pounds of trim into money so it competes for attention against other cost lines.

Plastics Extrusion - Pipe, Film & Profile calculator

Trim Scrap Cost Calculator

Trim scrap cost puts a dollar figure on the edge trim, startup purge, and off-spec material an extrusion line generates, valuing the wasted resin and adding fixed handling to get a true cost of scrap. The capture factor lets you credit back regrind that gets reused, so the number reflects net loss rather than gross weight. Plant managers and cost estimators use it to price waste into a quote and to prioritize which lines or products bleed the most margin. On a resin-heavy operation, trim scrap is often the largest controllable cost after the pellets themselves.

What this calculator does

Estimate the cost of edge trim, slitter trim, or start-up scrap from scrap weight, resin cost, capture factor, and fixed handling cost.
Use it when film, sheet, or profile teams need to quantify trim scrap impact on run cost and yield.
It multiplies scrap weight by resin cost and a capture factor, adds fixed handling, and divides by weight to give both total and per-pound scrap cost.

Formula used

Trim Scrap Cost = trim and start-up scrap weight × resin cost × cost capture factor + fixed scrap handling cost
Per-unit cost = total cost ÷ trim and start-up scrap weight

Inputs explained

Trim and start-up scrap weight:
Resin material cost:
Recoverable cost fraction:
Fixed scrap handling charge:

How to use the result

Use it when costing a job, comparing scrap between products or lines, or building a business case for a scrap-reduction project.
The capture factor is a single number for how much resin value is truly lost — it won't distinguish clean regrind that runs at full value from contaminated scrap that must be landfilled.

Current U.S. benchmarks

The producer price index for steel mill products stands at 348.53 (BLS, May 2026), up 6.7% from a year earlier. Quotes priced off last quarter's material cost miss this move.
The producer price index for aluminum mill shapes stands at 404.859 (BLS, May 2026), up 36.8% from a year earlier. Quotes priced off last quarter's material cost miss this move.
The producer price index for plastic resins and materials stands at 319.371 (BLS, May 2026), up 19.5% from a year earlier. Quotes priced off last quarter's material cost miss this move.
The U.S. has 3,569 primary metal manufacturing establishments employing about 354,911 workers (Census County Business Patterns, 2023).

Common questions

How do you calculate trim scrap cost? Multiply scrap weight by resin cost and the capture factor, then add fixed handling. With 350 lb, $1.45/lb, 100% capture, and $75 handling: 350 x 1.45 x 1.00 + 75 = $582.50 total.
What does the cost capture factor mean? It's the share of resin value actually lost. At 100% none of the scrap is recovered as usable regrind; at 40% you're crediting back 60% because most of it goes back into the process at value.
What is the per-pound scrap cost here? Total cost divided by scrap weight: $582.50 over 350 lb is $1.66 per scrap pound, which runs above the $1.45 resin price because the fixed $75 handling is spread across the weight.
Why include a fixed handling charge? Scrap costs more than the resin in it — grinding, sorting, labor, and disposal are largely fixed per batch. Folding in $75 here is what pushes the per-pound cost above the raw resin price.
How can I lower trim scrap cost? Cut edge trim width, shorten startup purge, raise the capture factor by keeping regrind clean and reusing it, and reduce fixed handling by batching scrap. Each lever hits a different term in the formula.

Last reviewed 2026-05-12.