How do you calculate panel cut yield?

Divide accepted panels by total panels cut. With 228 accepted out of 250 cut, yield is 228 divided by 250, or 91.2%.

What is a good panel cut yield for duct blanks?

For sheet-metal duct blanks on a laser or plasma table, 95-98% is a strong target. The example's 91.2% sits below a 93% target by 1.8 points, signaling scrap worth investigating.

What does the gap to target mean?

It's your target yield minus actual yield, in percentage points. Here a 93% target against 91.2% actual leaves a 1.8-point gap, meaning the cell is short of plan and roughly four extra panels were scrapped.

Why track yield by count instead of just counting scrap?

A raw scrap count ignores volume. Twenty rejects out of 250 is very different from 20 out of 2000. Yield normalizes scrap against throughput so you can compare shifts and jobs fairly.

How many panels do I need to recut to hit 250 good ones?

At 91.2% yield, you'd cut about 274 to net 250 accepted. Raising yield to the 93% target drops that to about 269, saving material and table time on every run.

What usually drives panel cut yield down?

Common causes are nesting errors, sheet skew or camber, dull or mis-set shear blades, dross on plasma cuts, and incorrect kerf offset. A sudden yield drop usually points to one machine or one material lot.

HVAC Ductwork, Air Handling & Mechanical Products calculator

AHU and Duct Panel Cut Yield Calculator

Panel Cut Yield measures the share of sheet-metal duct panels or blanks that come off the cutting operation usable, versus those scrapped for miscuts, burrs, or dimensional errors. Fabrication leads and quality staff use it to track how efficiently a plasma table, laser, or shear is turning coil and sheet into good blanks. It matters because every rejected panel is paid-for material and machine time lost, and a small yield drop multiplies fast across a high-volume duct run. Comparing actual yield to a target tells you immediately whether the cutting cell is on plan or bleeding material.

What this calculator does

Calculate the panel cut yield for air handling unit panels or duct blank cuts. Compare accepted finished panels to total panels cut to find your current yield and the gap to the shop target.
Use this when tracking the cut yield on AHU casing panels, double-wall panel blanks, or duct blank cuts on a plasma table, waterjet, or laser. A low panel yield indicates excessive scrap from nesting inefficiency, incorrect blank sizes, or material defects. This rate is also useful when reporting material efficiency for sheet metal or pre-insulated panel orders.
It computes the percentage of cut panels that are accepted and the point gap between that yield and your target.

Formula used

Panel cut yield = accepted panels ÷ total panels cut
Gap to target = target yield - calculated yield

Inputs explained

Accepted panels or blanks after cutting:
Total panels or blanks cut:
Panel cut yield target:

How to use the result

Use it at end of shift or per job to check cutting-cell material efficiency and flag when scrap is trending up.
It is a count-based yield only; it does not weight panels by size or value, so a few large scrapped blanks can cost more than the percentage suggests.

Current U.S. benchmarks

Industrial electricity averages 8.66 cents per kWh across the U.S. (EIA, Apr 2026), up 5.5% from a year earlier. Energy-intensive steps carry this directly into unit cost.
U.S. housing starts run at 1,177k per year (Census, May 2026), down 8.7% from a year earlier, the demand driver for building products.

Common questions

How do you calculate panel cut yield? Divide accepted panels by total panels cut. With 228 accepted out of 250 cut, yield is 228 divided by 250, or 91.2%.
What is a good panel cut yield for duct blanks? For sheet-metal duct blanks on a laser or plasma table, 95-98% is a strong target. The example's 91.2% sits below a 93% target by 1.8 points, signaling scrap worth investigating.
What does the gap to target mean? It's your target yield minus actual yield, in percentage points. Here a 93% target against 91.2% actual leaves a 1.8-point gap, meaning the cell is short of plan and roughly four extra panels were scrapped.
Why track yield by count instead of just counting scrap? A raw scrap count ignores volume. Twenty rejects out of 250 is very different from 20 out of 2000. Yield normalizes scrap against throughput so you can compare shifts and jobs fairly.
How many panels do I need to recut to hit 250 good ones? At 91.2% yield, you'd cut about 274 to net 250 accepted. Raising yield to the 93% target drops that to about 269, saving material and table time on every run.

Last reviewed 2026-05-12.