The right rebar fabricator for an Ontario job is one that can detail your drawings, fabricate to Canadian standard practice, tag everything clearly, deliver on your pour schedule and put all of that in a quote you can compare line by line. Size and price matter, but most problems on site come from detailing errors, unclear scope and late or mixed-up deliveries. The questions below are designed to surface those before you sign.
Mills, fabricators and supply yards
It helps to know who does what in the rebar supply chain.
Mills make the bar. Rebar is rolled from steel at mills to CSA G30.18. A 2024 Canada Border Services Agency trade investigation named the domestic producers as ArcelorMittal Long Products Canada (Quebec), Gerdau (with facilities in Ontario and Manitoba), AltaSteel (Edmonton), Max Aicher (North America) in Hamilton, and Ivaco Rolling Mills in L'Orignal, Ontario, which makes wire rod and other long products. Bar is also imported. Mills sell in large quantities and standard lengths, not cut and bent to your job.
Fabricators turn bar into a job. A rebar fabrication shop (also called a fabrication plant or yard) buys bar from mills, details the job, shears and bends the bars to bar lists, tags and bundles them, and delivers to site. Some also place the steel.
Supply yards sell stock. Building supply yards and steel service centres sell straight bars in stock lengths, plus accessories. That works for a few bars on a small job you will cut and bend yourself.
For the trade-offs between the last two, see our guide on buying rebar in Ontario.
Questions to ask about detailing
Detailing is where most rebar mistakes start, so ask about it first.
- Who details the job, and is it in-house? When the detailer and the shop work together, questions get answered in hours rather than days.
- What standards do you detail to? In Canada, the reference is the Reinforcing Steel Institute of Canada (RSIC) Manual of Standard Practice together with the CSA concrete standards. Our article on Canadian detailing standards covers what that means in practice.
- Are your detailers RSIC certified? RSIC runs a detailer certification program. It is not the only measure of a good detailer, but it is a fair question.
- How do you handle assumptions and questions? Good detailers flag missing information on the drawings or in RFIs rather than quietly guessing.
- What is your timing for placing drawings? RSIC standard practice allows fifteen working days from issued-for-construction drawings. Ask what the fabricator can actually commit to for your first pour.
Questions to ask about material and fabrication
- Which sizes and grades do you keep in stock? Under RSIC practice, Grade 400W in 10M to 35M is normally available from fabricator stock, while 45M and 55M, Grade 400R and Grade 500 bar usually come by mill order, with longer lead times and sometimes minimum quantities. If your job uses any of these, raise it early.
- Can you supply specialty bar? Epoxy-coated, galvanized, stainless and GFRP bar are separate items with their own handling. Ask who supplies and fabricates each.
- Can you provide mill test reports? RSIC practice is that a certified copy of the mill test report for each heat is provided on request at the time of shipment. Ask how the shop links heat numbers to the bars on your job.
- What tolerances do you work to? Standard RSIC fabricating tolerances suit most work. If your engineer has called for tighter ones, make sure the quote reflects that.
- How do you tag and bundle? Ask for a sample tag. Your foreman should be able to read it without a phone call.
Questions to ask about delivery and site
- Can you phase deliveries to my pours? On most jobs you want steel released area by area, not all at once.
- What trucks do you use, and who unloads? Site access, street restrictions and lifting equipment all need to be worked out before the first load.
- Do you work through winter? Concrete work in Ontario does not stop in November, and your supplier should not either.
- Do you place rebar, or supply only? RSIC recognises supply-only, placing-only and supply-and-place contracts. Know which one you are pricing.
- How are shortages and damage handled? RSIC practice expects the buyer to check each load on arrival and report problems promptly. Ask what the fabricator's own terms say.
Comparing quotes fairly
Two rebar quotes can look far apart and still cover different things. Before comparing, check that each quote:
- Lists the drawings, revisions and addenda it was based on. RSIC estimating practice calls for this, along with a list of anything shown on those drawings that is excluded.
- Breaks out weight by bar size, so you can check quantities against each other or your own estimate.
- States the contract basis: lump sum, unit price or supply only.
- Says what is excluded. Under RSIC practice, a number of items are not provided unless specified. These include bar supports in a supply-only contract, epoxy coating, galvanizing, mechanical splices, welding, non-typical bends, special tolerances, engineered stamped drawings, site inspections and additional tying.
- Covers the same delivery scope, including phasing and any site restrictions.
If one quote includes chairs and placing and the other does not, you are not comparing like with like. Our article on rebar fabrication cost explains what drives the numbers.
Signs a fabricator is a good fit
There is no single right answer for every job, but good signs include:
- They ask questions about your drawings before quoting.
- Their quote shows exactly what it covers and what it does not.
- They explain how releases, approvals and changes will work.
- They can show you tags, bar lists or placing drawings from past jobs.
- The person you speak to understands the site side, not just the shop side.
Distance matters too. A shop within reasonable trucking range of your site makes phased deliveries and quick top-ups easier.
Start with one release
If you have not worked with a fabricator before, the first release of a job tells you most of what you need to know. Watch how it goes:
- Did the placing drawings arrive when promised, and were assumptions flagged clearly?
- Were questions about the drawings answered quickly, by someone who understood them?
- Did every bundle on the truck have a readable tag that matched the bar list?
- Did the quantities and bend dimensions check out when your crew started placing?
- When something was wrong, was it fixed without an argument?
A footing release is a low-risk way to find out. By the time you reach the walls and slabs, you will know whether the drawings, tags and deliveries can be trusted, and so will your foreman.
About Procut Steel
Procut Steel Inc. is an Ontario metal fabricator in Erin, with over 30 years of experience in metal manufacturing. For rebar, we provide estimates and detailing, prepare bar lists and placing drawings, shear, bend, tag and bundle bar from 10M to 55M, including dowels and stirrups, and supply GFRP rebar. We deliver across the GTA and Ontario with phased deliveries, install rebar, and keep production going year-round. Take-offs and quotes are free.
Send us your drawings and ask us anything on this list, or see our services for the full scope.
Frequently asked questions
Who makes rebar in Canada?
Rebar is rolled at steel mills. Canadian producers named in a 2024 Canada Border Services Agency investigation include ArcelorMittal Long Products Canada in Quebec, Gerdau in Ontario and Manitoba, AltaSteel in Edmonton and Max Aicher (North America) in Hamilton. Fabricators buy bar from mills and cut, bend and deliver it to jobs.
What is rebar fabrication?
Rebar fabrication is the work of shearing reinforcing bar to length and bending it to the shapes on a bar list, then tagging, bundling and loading it for delivery. Most fabricators also detail the job, producing the placing drawings and bar lists from the structural drawings.
Should I buy rebar from a fabricator or a supply yard?
For anything built from structural drawings, a fabricator is usually the better route because the bars arrive cut, bent and tagged to the drawings. A supply yard suits small jobs that need a few straight stock bars you will cut yourself.
What should a rebar quote include?
A list of the drawings and revisions it is based on, the bar quantities by size, what fabrication and delivery are included, whether placing is included, and a clear list of exclusions such as bar supports, coatings or mechanical splices.
