How do you calculate rework rate?

Divide the number of units needing rework by the total units inspected, then multiply by 100. With 9 forklifts reworked out of 180 inspected, that is 9 / 180 x 100 = 5%.

What is a good rework rate for forklift assembly?

World-class lift-equipment lines run final-assembly rework below 2-3%. A 5% rate, as in the example, is workable but signals a recurring fault worth a root-cause review; double-digit rates point to a process or supplier problem.

What is the difference between rework rate and scrap rate?

Rework rate counts units that can be corrected and still shipped; scrap rate counts units written off entirely. A welded mast with a crack may be scrap, while a loose hydraulic fitting is rework.

Why is my gap to target negative?

The gap is target minus actual. In the example, a 3% target minus a 5% actual gives -2 points, meaning you are 2 percentage points over target and need corrective action.

Does rework rate include warranty returns?

No. This metric covers defects caught in-house before shipment. Field failures belong in a separate warranty or escaped-defect rate, since they reflect inspection escapes rather than line rework.

How can I lower rework rate on a lift-truck line?

Attack the top recurring defect first — often torque, hydraulic seal seating, or harness routing. Add poka-yoke fixtures, verify supplier component quality, and confirm a fix held by watching the rework rate fall over the next several batches.

Forklifts, Lift Equipment & Material Handling Vehicles calculator

Rework Rate Calculator

Rework rate is the share of forklifts, masts, or lift-truck components that fail first-pass inspection and have to be sent back for correction before they can ship. Quality engineers and line supervisors on lift-equipment assembly lines track it because rework eats labor hours, ties up bays, and is the single clearest leading indicator of an unstable process — a hydraulic leak at final test or a torque miss on a mast carriage. Watching the trend tells you whether a fix on the floor actually held. It is the number that separates a line running to spec from one quietly burning margin on second passes.

What this calculator does

Calculate rework rate for lift trucks, attachments, masts, hydraulic assemblies, paint, final test, or dealer-prep work.
Use it when tracking how many trucks or components require rework after inspection, functional test, paint review, torque audit, hydraulic test, or customer acceptance.
It divides the count of trucks or components needing rework by the total inspected and multiplies by 100 to give a rework percentage, then compares that to your target.

Formula used

Rework Rate rate = trucks or components needing rework ÷ total trucks or components inspected × 100
Rework Rate gap to target = target maximum rework rate - calculated rate

Inputs explained

Trucks or components needing rework:
Total trucks or components inspected:
Target maximum rework rate:

How to use the result

Use it at the end of each shift or build batch to gauge first-pass quality at final test, paint, weld, or mast assembly stations.
It treats every rework event as equal — a minor decal realignment counts the same as a full hydraulic teardown, so pair it with rework-hours or defect-cost data for a true severity picture.

Current U.S. benchmarks

On-highway diesel averages $4.58 per gallon this week (EIA), trending down over recent periods. Truck tonnage is up 3.4% year over year (ATA via FRED).
U.S. light vehicles sell at a 16.9 million annual rate (BEA, Jun 2026), up 4.1% from a year earlier, the volume signal for automotive supply chains.
Steel mill PPI stands at 348.53 (BLS, May 2026), up 6.7% from a year earlier. New factory orders are up 2.3% year over year (Census).
The U.S. has 11,691 transportation equipment establishments employing about 1,682,910 workers (Census County Business Patterns, 2023).

Common questions

How do you calculate rework rate? Divide the number of units needing rework by the total units inspected, then multiply by 100. With 9 forklifts reworked out of 180 inspected, that is 9 / 180 x 100 = 5%.
What is a good rework rate for forklift assembly? World-class lift-equipment lines run final-assembly rework below 2-3%. A 5% rate, as in the example, is workable but signals a recurring fault worth a root-cause review; double-digit rates point to a process or supplier problem.
What is the difference between rework rate and scrap rate? Rework rate counts units that can be corrected and still shipped; scrap rate counts units written off entirely. A welded mast with a crack may be scrap, while a loose hydraulic fitting is rework.
Why is my gap to target negative? The gap is target minus actual. In the example, a 3% target minus a 5% actual gives -2 points, meaning you are 2 percentage points over target and need corrective action.
Does rework rate include warranty returns? No. This metric covers defects caught in-house before shipment. Field failures belong in a separate warranty or escaped-defect rate, since they reflect inspection escapes rather than line rework.

Last reviewed 2026-05-12.