How do you calculate extrusion labor per billet?

Multiply billets processed by labor rate per billet, scale by the applied labor share, then add fixed setup labor. Here: 96 x $42 x 100% = $4,032 variable, plus $850 fixed = $4,882 total.

What is the labor cost per billet in extrusion?

In this example the effective labor cost per billet is $50.85 once the $850 fixed setup is spread across 96 billets. The pure variable rate is $42; the rest is diluted setup labor.

How does run length affect labor per billet?

Fixed setup labor is shared across all billets, so longer runs lower the effective per-billet cost. Doubling the run to 192 billets would push the $850 setup down to about $4.43 per billet instead of $8.85.

What does applied billet labor share mean?

It is the fraction of the labor rate you assign to this product or cost center. At 100% the full rate applies; lower it when labor is shared across simultaneous products or partly charged elsewhere.

Why separate fixed setup labor from variable labor?

Setup and changeover labor occurs once per run no matter how many billets follow. Keeping it separate from the $42 per-billet variable rate shows exactly how much short runs penalize your per-billet cost.

How can I reduce extrusion labor per billet?

Cut changeover time to shrink the $850 fixed component, and run longer batches to dilute it. Both lower the effective $50.85 per-billet figure without changing the $42 variable rate.

Aluminum Extrusion & Profile Manufacturing calculator

Extrusion Labor per Billet Calculator

Labor per billet isolates the direct labor cost of running aluminum through the press, billet by billet, plus the fixed labor of setting up and changing over the line. Cost estimators and press supervisors use it because labor on an extrusion line is part variable — operators loading, pulling, stretching, and sawing each billet — and part fixed, the setup and die-change labor that happens once per run regardless of length. Separating the two shows where labor really goes and how much a longer run dilutes the fixed setup cost. It is the labor backbone of any per-pound or per-foot extrusion quote.

What this calculator does

Estimate labor cost assigned to billets from billets processed, labor cost per billet, applied labor share, and fixed setup labor.
an estimator or production manager needs to assign labor cost to billet-based extrusion work
It computes variable billet labor as billets processed times labor rate per billet times the applied labor share, then adds fixed setup or changeover labor for a total.

Formula used

Variable billet labor cost = billets processed × labor cost per billet × applied billet labor share
Total extrusion labor cost = variable billet labor cost + fixed setup or changeover labor

Inputs explained

Billets processed:
Labor rate per billet:
Applied billet labor share:
Fixed setup or changeover labor:

How to use the result

Use it when building an extrusion quote, costing a run, or evaluating how run length spreads fixed setup labor.
A single labor-rate-per-billet smooths over real variation — a billet that needs extra stretching or a tricky saw cut costs more labor than the average implies.

Current U.S. benchmarks

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 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 extrusion labor per billet? Multiply billets processed by labor rate per billet, scale by the applied labor share, then add fixed setup labor. Here: 96 x $42 x 100% = $4,032 variable, plus $850 fixed = $4,882 total.
What is the labor cost per billet in extrusion? In this example the effective labor cost per billet is $50.85 once the $850 fixed setup is spread across 96 billets. The pure variable rate is $42; the rest is diluted setup labor.
How does run length affect labor per billet? Fixed setup labor is shared across all billets, so longer runs lower the effective per-billet cost. Doubling the run to 192 billets would push the $850 setup down to about $4.43 per billet instead of $8.85.
What does applied billet labor share mean? It is the fraction of the labor rate you assign to this product or cost center. At 100% the full rate applies; lower it when labor is shared across simultaneous products or partly charged elsewhere.
Why separate fixed setup labor from variable labor? Setup and changeover labor occurs once per run no matter how many billets follow. Keeping it separate from the $42 per-billet variable rate shows exactly how much short runs penalize your per-billet cost.

Last reviewed 2026-05-12.