Quick calculation
Enter stock lengths, parts, kerf and trimming. Get cutting maps immediately without creating an account.
- Several stock lengths in one task
- Finite or unlimited quantities
- Printable cutting report
Exact 1D cutting optimization
Less waste. More usable material.
Kerfexa calculates cutting maps for profiles, pipes, bars, boards and other linear stock. It accounts for kerf, separate left and right trimming, finite stock and reusable remnants.
FreeQuick calculation without registration
6Interface languages
CP-SATExact integer optimization model
Project
Facade profiles — order 024
Optimal
Stock 6000 mm94.3%
Stocks used17
Useful remnants5
Irrecoverable waste2.8%
Material balance checked: parts, kerf, trimming and tail are all accounted for.
Built for any industry that cuts linear stock
Metal profilesWood and boardsPipes and barsCustom materials
Three workflows, one calculation core
Use Kerfexa from a quick estimate to full stock control
The free mode solves everyday cutting tasks. Pro adds warehouse remnants and special-length procurement.
My warehouse
Keep full-length stock and useful remnants together, calculate from actual inventory, then post the result back to stock.
- Full stock and remnants by material
- Remnants-first or best overall strategy
- Controlled stock write-off and return
Special lengths
Find suitable custom stock lengths for a specification before ordering material from a supplier.
- Minimum, maximum and step constraints
- Limit the number of stock types
- Compare procurement efficiency
Clear workflow
From specification to cutting map in four steps
Add stock
Specify one or several available stock lengths and quantities.
Add parts
Enter part names, lengths and required quantities.
Set cutting rules
Kerf, left trim, right trim and the useful-remnant threshold are explicit.
Calculate and print
Review grouped maps, material balance, leftovers and waste.
Transparent mathematics
The result explains where every millimetre went
Kerfexa validates strict material balance and distinguishes a reusable remnant from irrecoverable waste. It does not hide cutting assumptions behind a single “loss” percentage.
Open the built-in example →Simple pricing
Calculate for free. Upgrade when stock becomes part of the workflow.
The 14-day Pro trial starts after email confirmation and does not require a card.
Free
€0forever
For quick cutting calculations without registration.
- Quick calculation
- Several stock lengths
- Kerf and independent trimming
- Printable result
Kerfexa Pro
€12.90per month
€119 per year
- Everything in Free
- Warehouse positions and remnants
- Posting results back to stock
- Special-length selection
- Google and email account access
- Subscription management portal
FAQ
Common questions before the first calculation
For technical or account questions, contact support@kerfexa.com.
What materials can Kerfexa calculate?
Any material represented as linear stock: metal profiles, pipes, bars, timber, boards, cable channels and similar products.
Is Quick calculation really free?
Yes. It works without registration. An account is required only for Pro workflows and the trial.
How are kerf and trimming counted?
Kerf and both end trims are separate inputs. If a trim already represents the full material removed, Kerfexa does not add the saw width to it again.
Does the warehouse use remnants first?
You can choose remnants-first or the best overall result across full stock and remnants.
Can I cancel Pro?
Yes. After cancellation, Pro access remains active until the end of the paid period.
Does Kerfexa install on my computer?
No installation is needed. Kerfexa runs in a modern browser and stores account data securely on the server.
Start with a real specification