Rebar Optimiser Cuts Steel Waste and Carbon Emissions
Cardiff, UK – July 2025 – Rebar waste is a costly, avoidable problem. Every time a fabricator cuts standard bar lengths to order, leftover pieces pile up — too short to reuse, too expensive to ignore. GoSmarter AI built the Rebar Optimiser to fix that.
Rebar reinforces concrete. It arrives in standard long lengths and gets cut to project-specific sizes. What’s left is either an offcut (large enough to reuse) or scrap (too small to be useful). Most operations accept this waste as the cost of doing business. It isn’t.
How It Works
The Rebar Optimiser runs on genetic algorithms — a form of AI modelled on natural selection — to solve the cutting stock problem at scale. It analyses thousands of possible cutting combinations across entire order sets and finds the most efficient sequences. The result: cutting plans that maximise bar utilisation, slash scrap, and account for the carbon footprint of every wasted millimetre.
Why It Matters
- Less waste: Optimised cuts mean fewer offcuts going in the skip.
- Lower costs: Better material efficiency means you buy less steel.
- Greener production: Less scrap means a lower carbon footprint per tonne.
- Smarter planning: Automated cutting plans replace spreadsheet guesswork.
“Rebar waste is a common and costly challenge across the industry. With genetic algorithms, the Rebar Optimiser makes it simple to plan smarter cuts, reduce scrap, and make production more sustainable.” — GoSmarter AI
The Rebar Optimiser is available now at GoSmarter.ai as part of a growing suite of AI tools built for rebar manufacturers and fabricators who are done with waste being written off as normal.
Want to see it in action? Get in touch.
FAQs
What is the rebar optimisation problem?
Reinforcing steel (rebar) fabrication involves cutting, bending, and assembling steel bars to create the reinforcement cages and individual bars that go into concrete structures. The cutting step is where most material waste occurs: given a set of bars that need to be cut to specific lengths, what is the most efficient way to cut them from stock lengths to minimise off-cuts?
This is a combinatorial optimisation problem — the number of possible cutting combinations grows exponentially with the number of different bar lengths required — which is why manual approaches (where a bender or estimator works out a cutting plan by hand or with a simple spreadsheet) consistently leave material on the floor that a good algorithm would have used.
GoSmarter’s Rebar Optimiser applies proven algorithmic approaches to this problem, generating cutting plans that minimise waste across a batch of orders — not just optimising each order individually, but looking across multiple orders to find opportunities to use off-cuts from one job on another.
What is the carbon dimension?
The environmental impact of rebar optimisation goes beyond material cost. Steel production is one of the most carbon-intensive manufacturing processes — roughly 1.9 tonnes of CO₂ per tonne of steel produced using traditional methods. Every tonne of rebar that is optimised away from the waste stream is a tonne that did not need to be produced. At scale, across the UK and Ireland’s rebar fabrication sector, this represents a significant carbon saving opportunity.
GoSmarter’s emissions calculator allows fabricators to quantify the carbon impact of their waste reduction — giving them a metric that they can share with customers, include in sustainability reports, and use to make the business case for investment in optimisation technology.