10M Rebar: Diameter, Weight and Common Uses
10M rebar explained: 11.3 mm diameter (0.445 in), 0.785 kg/m, how it compares to 3/8 and 1/2 inch bar, bend and hook sizes, laps and where the OBC calls for it.
10M rebar explained: 11.3 mm diameter (0.445 in), 0.785 kg/m, how it compares to 3/8 and 1/2 inch bar, bend and hook sizes, laps and where the OBC calls for it.
How 10M, 15M, 20M and 25M rebar is priced: weight per bar, metres per tonne, and why fabricated small bars cost more per tonne. Plus how to compare quotes.
15M rebar explained: 16.0 mm diameter (0.630 in), 1.570 kg/m, why it matches 5/8 inch #5 bar and not 1/2 inch, bend and hook sizes, laps and where the OBC uses it.
20M rebar is 19.5 mm and 2.355 kg/m; 25M is 25.2 mm and 3.925 kg/m. Sizes in inches, US equivalents, hooks, laps and where each bar is used.
How ACI 318 and CSA A23.3 set rebar lap splice lengths: development equations, Class A and B, minimums, compression laps, bar size limits and a side-by-side example.
Are rebar prices going up in Canada? What the price indexes and 2025 to 2026 steel trade measures show as of October 2026, and how to protect your project budget.
How to pick an adhesive for rebar dowels: epoxy vs hybrid vs other chemistries, what a rebar evaluation report covers, cure in cold weather and what never to use.
A buyer's guide to fiberglass (GFRP) rebar in Ontario: what to specify, CSA S807 and MTO requirements, straight lengths, bent shapes, lead times and site handling.
How to buy rebar chairs in Canada: chair types, picking the right height for CSA A23.1 cover, estimating quantities, and what drives the cost of chairs and bolsters.
Can fiberglass (GFRP) rebar go in footings, foundation walls and retaining walls in Ontario? What the code allows, when it makes sense and what to order.
Which rebar is weldable in Canada: what the W in 400W and 500W means, why CSA W186 governs rebar welding, when tack welding is allowed and why most bar is tied.
Convert Canadian metric rebar (10M to 55M) to US bar sizes (#3 to #18): diameters, areas and weights, nearest equivalents, and how to substitute bars safely.
How rebar sizes for concrete beams and columns are chosen in Canada: steel area, minimum and maximum limits, fitting bars in the section and tie sizes.
What Class A and Class B tension lap splices are under CSA A23.3, the two tests for a Class A lap, how columns differ, contact vs non-contact laps and bar lists.
How column dowel bars work: CSA A23.3 minimum area, size limits, embedment into the footing, lap length above it, hooked vs straight dowels and setting them.
Minimum concrete cover for rebar under CSA A23.1: the Table 17 values by exposure class, how footings, slabs and walls differ, OBC Part 9 notes and ACI comparison.
Is GFRP rebar code compliant in Ontario? How CSA S807, CSA S806, CSA S6 and the 2024 OBC treat fiberglass rebar, what the grades mean, and what MTO requires.
Fiberglass rebar cannot rust, but it is not indestructible. How GFRP handles alkali, moisture, UV, heat and electricity, if it floats, and what sets its lifespan.
Free quotations
Email your structural or rebar drawings and we'll come back with a detailed quote.