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Rebar Tools

Written for Canada. Plans are metric, but many crews and suppliers work in feet and inches, so this site gives both: millimetres and metres, with feet and inches beside them. Codes are the National Building Code of Canada 2020 (NBC 2020) Part 9 as your province adopts it. A number marked Confirm has not been checked against every province, so check it with your own authority before you act on it.

Reviewed by a working tradesman with 17+ years in the field.

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Rebar tools cut, bend, tie and place steel. Accuracy, cover and capped ends matter most.

I am a:

Tap your level and the boxes below open to the advice for you. Remembered on this device.

What it isThe tools that cut, bend, tie and place reinforcing steel.
Your jobGet the bars cut and bent to the drawings, tied tight, at the right height and cover, and capped where people could fall.
The hard ruleCap exposed ends. Never use the wrong cutter on structural bars. Never guess a bend or lap.
The checkSize, spacing, cover, laps, chairs, ties and anchors before the pour.

By the end you can

  • Pick the right cutter and bender for a bar size.
  • Name the tools for tying, placing and handling rebar.
  • Spot the impalement and sharp-wire hazards.
  • Say who decides bends, laps and cover.
Stop and read

Exposed rebar ends can impale a worker who falls onto them. Cap or guard them where people work or could fall. I could not confirm the exact Canadian regulation section on impalement hazards, so check your provincial OHS regulation.

Rebar is heavy and sharp. Lift bars with enough people or machinery, keep walkways clear, and watch for sharp tie wire. Cut-off saws throw sparks and dust.

The big idea

Rebar tools cut, bend, tie and place reinforcing steel. Good rebar work is about accuracy, cover and tight ties, and about handling a sharp, heavy material safely. In Canada rebar is sized in metric (10M, 15M and so on; see Rebar Placement). Bar sizes, bends, laps and cover come from the drawings, not from the tool.

Cutting and bending

  • Manual rebar cutter: small to medium bars. Bolt cutter: light bars and tie wire only, never structural rebar. Rebar shear: floor or bench cutter for repeated cuts. Portable band saw or cut-off saw: clean cuts on larger bars; cut-off saws throw sparks and make dust.
  • Manual bender, bending table and hickey: hooks, stirrups and corners. Hydraulic bender: large bars and production work.
  • Bend to the radius and shape on the drawings. Do not re-bend or straighten bars without checking the rules. Confirm the rules for galvanized or epoxy-coated bars before bending them.

Example (numbers made up). Forty pieces 1.5 m (4 ft 11 in) long from 6 m (19 ft 8 in) bars is 4 pieces per bar, so 40 ÷ 4 = 10 bars with no waste. Allow for cutting waste and check the bar schedule.

Tying, placing and handling

  • Tie wire, reel and spinner, rebar pliers: fast tying. Battery tying gun: big slabs and mats.
  • Chairs and dobies hold bars at the right height and give cover (see Rebar Chairs and Spacers). Spacers keep bars off the forms. Rebar caps protect people from exposed ends. Laser level and tape check height, spacing and alignment.
  • Rebar hooks, carts and telehandler forks move bars and bundles. Lifting clamps are for machine lifts, with rigging by qualified people only. Cut-resistant gloves and sleeves protect hands and forearms.

Power sources and weather

  • Corded electric: use GFCI protection on the supply and extension cords. Confirm your provincial OHS electrical rules.
  • Battery: loses power in cold and can overheat in hot sun.
  • Gas and diesel: give off carbon monoxide, so never run them in an enclosure or low area without ventilation.
  • Hydraulic (benders and machines): never check for leaks with your hand.

Weather: hot steel burns, so wear heat-resistant gloves and use shade; in the cold use insulated gloves that still let you tie and keep tie wire warm; in rain use waterproof gloves and control rust; with snow and ice clear the bars and wear traction cleats; in wind brace cages.

Common mistakes

  • Wrong spacing or cover
  • Bars sitting on the ground, not on chairs
  • Weak ties
  • Wrong bend radius
  • Oil or mud on the steel (loose surface rust is usually not the problem, but confirm with the engineer)
  • Unsafe handling and lifting
  • Uncapped bars at head height
Pro note

Rebar is the backbone of the concrete. Clean layout, correct spacing, accurate bends and tight ties let the structure perform as designed.

Weather note

Heat makes the steel hot, cold makes wire stiff and hands slow, rain starts surface rust and wind can shift cages. Adjust tools and PPE.

What the inspector or safety officer looks at

Bar size, spacing, cover, laps, chairs, ties and the location of anchors and dowels, before the pour. Confirm what your authority checks.

✅ Check yourselfTap a question
What is the main injury hazard of exposed rebar ends?
Impalement, if someone falls onto them. Cap or guard exposed ends where people work or could fall.
Can you use a bolt cutter on structural rebar?
No. A bolt cutter is for light bars and tie wire only. Use a rebar cutter, shear or saw for structural bars.
Who decides bend shapes, laps and cover?
The drawings and the engineer or code. Do not guess any number before you cut or bend steel.
Why set bars on chairs and not on the ground?
So the steel sits at the right height with the cover the drawings show. Bars on the ground end up at the bottom of the concrete (see Rebar Chairs and Spacers).
How many 6 m (19 ft 8 in) bars do you need to cut into 1.5 m (4 ft 11 in) pieces, with no waste, for 40 pieces?
Each bar gives 6 ÷ 1.5 = 4 pieces, so 40 ÷ 4 = 10 bars. Sizes are made up; check the bar schedule and allow for cutting waste.
Tie wire is sharp. Where do you keep it?
In a reel or pouch, and never loose on the ground or a walkway where people kneel or step.
🧰 Gear for this stepMust-haveRent itNice to have
  • Must-haveCutting: manual rebar cutter for small and medium bars; bolt cutter for light bars and tie wire only; a bench shear or portable band saw or cut-off saw for larger or repeated cuts
  • Rent itBending: manual bender or bending table and hickey for hooks and stirrups; hydraulic bender for large bars
  • Must-haveTying:
  • Must-havePlacement:
  • Must-haveHandling:
  • Must-haveGloves and sleeves:
  • Must-havePPE:
🛒 Buy, rent or borrow?Tap your level
Home DIY
Rent a bar cutter and bender for one job and borrow a tie-wire spinner if you can. Buy only cut-resistant gloves, safety glasses, boots and rebar caps. Do not place rebar for engineered or structural concrete; the engineer's drawings and an inspection govern it.
Laborer or helper
Carry, cut and tie under direction. Wear cut-resistant gloves, cap exposed bars, and never throw or drop bars. Tell the lead about any uncapped bar at head height or any sharp tie wire left lying.
1st-year apprentice
Cut, bend and tie to the drawings under supervision. Learn to read the bar schedule, the bend shapes and why cover matters. Buy your own gloves, glasses, boots and hand tools.
Apprentice, 2nd to 4th year
Cut, bend, tie and place bars from the drawings, set chairs and spacers, and check height and cover with a tape. Never re-bend or straighten bars without checking the rules, and report any change you cannot match to the drawings.
Journeyperson
You own bar layout, bends, ties, cover and capping before the inspection, and you decide how bars are handled and lifted safely. Call the engineer for any change to the design.
Lead hand or foreman
Check size, spacing, cover, laps, chairs, ties and capping against the drawings before the inspector arrives, and make sure lifts are rigged by qualified people.
Contractor or business owner
Price bar, cutting and bending (in-house or supplier-bent), ties, chairs, caps and inspection time as separate lines. Keep drawings and photos on file, and ask your insurer who carries the cost of a missed bar.
Starting a new business
Learn the drawing symbols, the supplier's bar-bending service and your province's impalement and lifting rules before you quote. Confirm insurance and workers' compensation coverage before your first job.
By Province:

Impalement, lifting and electrical rules are set by each province's OHS regulation, and rebar design comes from the drawings and the code your province adopts. I dropped the old per-province section references because I could not verify them. Confirm with your OHS regulator.

See Canada by Province for the full comparison.

Sources:
  • Rebar sizes, cover and placement are covered with sources in the Rebar Placement and Rebar Chairs and Spacers lessons in this book.
  • A Canadian regulation section on impalement protection was not confirmed. Tool descriptions and hazard guidance are general trade practice.

Last reviewed October 2026. General information, not engineering or legal advice.

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