How Do You Calculate the True Cost of a Laser-Cutting Job?
By Nevil Darukhanawala | Series: Sheet Metal Week
You calculate the true cost of a laser-cutting job by adding up all the real costs it consumes — material actually used including offcut, laser run-time, assist gas and consumables, labour, secondary operations like bending and finishing, and overhead — rather than relying on a flat estimate or a simple per-hour rate. The true cost of a job is its actual, fully-loaded cost based on what it really consumed, and it often differs from the quote, especially on slow or material-heavy jobs.
This matters because fabricators quote many jobs quickly, and if true cost is never measured, the same kind of job can lose money repeatedly without anyone noticing.
What goes into the true cost of a job
Material — the steel or aluminium actually consumed, including the offcut and skeleton attributable to the job, not just the net part weight.
Laser run-time — the real cutting time, which varies with material thickness, profile complexity, and cut-path optimisation.
Assist gas and consumables — oxygen or nitrogen, nozzles, lenses, and other consumables used.
Secondary operations — bending, welding, deburring, finishing, and any other steps.
Labour and overhead — operator time and an allocated share of fixed costs.
Why a flat hourly rate is misleading
Many fabricators cost jobs using a flat laser-hour rate plus material. This hides real differences between jobs. A thick-material or complex job runs slower and consumes more gas and consumables than a thin, simple one, but a flat rate charges both the same — so the slow, expensive jobs quietly lose money while the fast, simple ones look less profitable than they are. Without true per-job cost, these differences disappear into the overhead pool and never surface.
Why it is hard to see
The cost data for one job is scattered: material in purchasing, cutting time on the machine or in its data, consumables in stores, secondary operations in production records, and the quote in a job file. Assembling the true cost of each job — across many fast-turnaround jobs — is not feasible by hand, so most fabricators rely on estimates and never confirm what jobs actually cost.
How it is done effectively
To calculate true job cost continuously, a fabricator uses a system that connects to material, cutting, consumables, and production data, and builds each job’s real cost, ideally against its quote. This is the kind of capability a CEO intelligence layer provides: reading across the systems that hold the data and presenting true cost per job as a live figure rather than a manual reconstruction.
Knowing true job cost lets a fabricator see which jobs and which customers are genuinely profitable, identify the slow or material-heavy work that loses money under flat-rate quoting, and price future jobs on what similar work actually cost — protecting margin across high quoting volume.
Part of the Sheet-Metal Fabrication & Laser Cutting series. See the fuller story in Every Sheet Is Either Product or Scrap. Do You Know Your Ratio? Related: What Is a CEO Intelligence System?
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