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Understanding Rebar Requirements for Concrete Projects
Why Use Rebar?
Rebar (reinforcing bar) is essential in concrete construction because it:
- Increases tensile strength
- Prevents cracking
- Improves durability
- Reduces required concrete thickness
Common Rebar Sizes
- #3 (⅜"): Patios, driveways
- #4 (½"): Walls, columns
- #5 (⅝"): Foundations, footings
Spacing Guidelines
- Driveways: 18"-24" spacing
- Walls: 36" vertical, 24" horizontal
- Foundations: Maximum 18" spacing