Rebar & Concrete Reinforcement: What Ontario Contractors Need to Know

Concrete is strong in compression but weak in tension — that’s why contractors in Ontario rely on rebar and reinforcement materials to build foundations, slabs, and structural walls that last. Here’s a breakdown of the most common reinforcement options, costs, and supply tips.

Types of Concrete Reinforcement

1. Rebar (Steel Reinforcing Bars)

   • Available in multiple diameters (#10, #15, #20).

   • Standard lengths (10ft, 20ft) or cut-to-size.

   • Essential for foundations, slabs, and load-bearing walls.

2. Welded Wire Mesh (WWM)

   • Pre-fabricated grids for slabs and flatwork.

   • Speeds up installation compared to individual bars.

3. Reinforcement Accessories

   • Chairs, ties, and spacers keep rebar positioned correctly.

4. Fiber Reinforcement

   • Added to concrete mix for crack resistance and durability.

Average Costs (Ontario 2025)

• Rebar (#10, 10ft): $7–$9 each.

• Rebar (#15, 20ft): $18–$22 each.

• Welded Wire Mesh (5’x10’): $12–$18 per sheet.

• Fiber Reinforcement: $12–$20 per bag (per yard of concrete).

Why Contractors Buy in Bulk

• Lower cost per ton or bundle.

• Consistent supply for large pours.

• Delivery ensures reinforcement arrives on time with ready-mix concrete.

Where to Buy in the GTA
Confirmed Construction Materials (ConfirmedCM) supplies rebar, mesh, and reinforcement accessories with bulk contractor pricing and GTA delivery.