Steel angle has no single price, because it is sold by weight and every size, from a small 51 mm angle to a heavy 152 mm one, weighs a different amount per metre. The cost of an angle order depends on the total weight, the grade, how your lengths cut from stock lengths, and the cutting, holes, welding, finish and delivery the pieces need. The material part also moves with the steel market and Canada's trade measures on steel. This guide explains how angle is priced so you can compare quotes and ask for an accurate one. For pricing on your job, send us your list or drawings.
Angle sizes and weight: the basis of the price
Angles are designated by their two leg lengths and their thickness. An L102x102x9.5 has two 102 mm legs and a 9.5 mm thickness: the metric name for a 4 x 4 x 3/8 in angle. Unequal-leg angles list the long leg first, for example L127x89x7.9 (5 x 3-1/2 x 5/16 in).
Because angle is sold by weight, the mass per metre is what turns a weight-based price into a length price. Common sizes:
| Metric designation | Imperial | Mass (kg/m) | Mass (lb/ft) |
|---|---|---|---|
| L51x51x6.4 | 2 x 2 x 1/4 | 4.7 | 3.19 |
| L64x64x6.4 | 2-1/2 x 2-1/2 x 1/4 | 6.1 | 4.1 |
| L76x76x6.4 | 3 x 3 x 1/4 | 7.3 | 4.9 |
| L89x89x6.4 | 3-1/2 x 3-1/2 x 1/4 | 8.6 | 5.8 |
| L89x89x7.9 | 3-1/2 x 3-1/2 x 5/16 | 10.7 | 7.2 |
| L102x102x6.4 | 4 x 4 x 1/4 | 9.8 | 6.6 |
| L102x102x9.5 | 4 x 4 x 3/8 | 14.6 | 9.8 |
| L127x89x7.9 | 5 x 3-1/2 x 5/16 | 12.9 | 8.7 |
| L127x127x9.5 | 5 x 5 x 3/8 | 18.3 | 12.3 |
| L152x102x9.5 | 6 x 4 x 3/8 | 18.2 | 12.3 |
| L152x152x9.5 | 6 x 6 x 3/8 | 22.2 | 14.9 |
Values from the AISC Shapes Database (metric and imperial columns), rounded.
Thickness is the big variable. An L102x102x9.5 carries about 49% more steel per metre than an L102x102x6.4 with the same legs. When two quotes for "4 inch angle" are far apart, check the thickness before anything else.
Price unit conversions
| From | To | How |
|---|---|---|
| per kg | per tonne | multiply by 1,000 |
| per kg | per lb | divide by 2.2046 |
| per metre | per foot | divide by 3.281 |
| weight-based | per metre | price per kg × mass in kg/m |
| per lb | per foot | price per lb × mass in lb/ft |
What goes into an angle quote
1. Material. The base steel for the exact size. The most common sizes are widely stocked. Less common combinations of leg and thickness can take longer to source.
2. Grade. Structural angle in Canada is usually supplied to CSA G40.21 grades such as 300W or 350W, or to ASTM grades such as A36, and may be certified to more than one. If your drawings specify a grade, or your project needs mill test certificates, say so up front. Our article on steel channel grades explains what these grades mean; angles use the same family of grades.
3. Stock lengths and drops. Angle comes in stock lengths. The way your pieces nest into those lengths decides how much steel you buy, including offcuts. Many short pieces from one size can nest efficiently; a single odd length may mean paying for a drop.
4. Cutting. Square cuts are quick. Mitred corners, coped or notched legs, and cuts to fit around other members take layout and more time.
5. Holes and slots. Punched or drilled holes for bolts, anchors or fasteners. Each one is an operation, and slotted holes take longer than round ones.
6. Welding. Angle is often welded into frames, supports, ledgers and lintel assemblies, or has plates and clips welded on. Each joint adds fitting and welding time. Structural welding should be done by a CWB-certified fabricator.
7. Finish. Bare, primed, painted or hot-dip galvanized. Exterior angle, including most lintels in masonry walls, usually needs corrosion protection. Galvanizing is done at a galvanizing plant and adds time and handling.
8. Delivery and quantity. Delivery cost depends on distance and whether it shares a truck with other steel. Small orders carry the same setup and handling as larger ones, so they cost more per kilogram.
What steel angle is used for, and how that affects cost
The same angle can be a simple cut piece or a fabricated assembly, and the use usually decides which:
- Masonry lintels. Angles over windows and doors in brick veneer. Usually cut to length, often primed or galvanized, sometimes with welded plates or hanger details. See steel lintel cost in Ontario.
- Ledgers and supports. Angles bolted to concrete or steel to carry joists, decking or equipment. Hole patterns are the main fabrication cost.
- Bracing. Single or double angles in steel frames, with bolt holes or gusset plates.
- Frames and edge protection. Angle frames for openings, curbs, pits and trench covers, often with welded corners and anchors.
- Clip angles. Short angles connecting beams to columns or other beams. Small pieces, but many holes and tight tolerances.
A related choice is angle versus a plate bent to an L shape. Bent plate can be made in thicknesses and leg lengths that aren't rolled, or in longer continuous pieces, but it involves a different process. See steel angle vs bent plate.
What moves angle prices over time
The material share of an angle quote follows the steel market: mill pricing, scrap and raw material costs, energy and demand. Since 2025, trade measures have added more movement: US tariffs on Canadian steel, Canadian surtaxes on many US-origin steel products, and import quotas on steel from other countries. Their effect depends on where the steel came from.
In practice this means shorter quote validity periods and, on some quotes, material escalation terms. Check both. For the wider background, see structural steel price per tonne in Canada.
How to compare angle quotes
| Item | What to check |
|---|---|
| Size | Full designation: both legs and thickness |
| Grade | Matches the drawings; mill certificates if required |
| Lengths | Cut to your lengths, or full stock lengths |
| Fabrication | Holes, mitres, copes, welded plates included? |
| Finish | Bare, primed, painted or galvanized |
| Delivery | Included, and where? |
| Validity | How long the price is held |
A cheaper price for "4 inch angle" isn't cheaper if it's the 6.4 mm thickness when your drawing calls for 9.5 mm, or if it's bare when you need galvanized.
Retail and online angle is also worth a note. Hardware-store "angle" is often light, punched or slotted angle for shelving, or aluminum. It isn't structural steel, and it isn't a substitute for an angle on structural drawings.
What to send for an accurate angle price
- Each angle's full designation, as shown on the drawing.
- The grade, and whether mill certificates are needed.
- Cut lengths and quantities, or the drawings.
- Holes, slots, mitres and any welded plates or anchors.
- Finish.
- Delivery address and timing.
Get angle pricing from Procut
We supply structural steel cut to length or fabricated to your shop drawings, including angle lintels for masonry openings, punched or welded as needed, and miscellaneous steel such as light supports. Take-offs and quotes are free, shop drawings are done in-house, shop welding is CWB certified, and we deliver across the GTA and Ontario.
Send your angle list or drawings for current pricing, or see the lintels and other steel products we supply.
Frequently asked questions
How is steel angle priced?
Structural angle is priced by weight. A per-foot or per-metre price is a weight-based price multiplied by the mass per metre of one exact size, so it applies only to that size. Cutting, holes, welding, finish and delivery are added for fabricated pieces.
Is angle iron the same as steel angle?
Yes, in everyday use. Angle iron is the traditional name for an L-shaped steel section. Modern structural angle is steel, not iron, and is designated by its leg lengths and thickness, for example L102x102x9.5 (4 x 4 x 3/8 in).
Why does a thicker angle cost so much more than a thinner one of the same size?
Because the price follows the weight, and the weight follows the thickness. An L102x102x9.5 has about half again as much steel per metre as an L102x102x6.4, even though both have 102 mm legs.
Can I buy steel angle online?
Some suppliers sell short lengths of small angle online or over the counter. For structural angle, lintels and anything with holes or welded parts, it is usually better to send a list or drawing to a supplier or fabricator and get it cut and fabricated to size.
