Reinforcement
Concrete handles squeezing well and pulling badly. Steel bars take the pull. These guides cover bar sizes and grades, how spacing and cover work, and when fiberglass bar makes more sense than steel.
- Rebar Sizes Explained
The number is the diameter in eighths of an inch. Full size chart and grades.
Published July 8, 2026
- Fiberglass Rebar vs Steel (GFRP)
The composite bar that never rusts: where GFRP beats steel, and where it does not.
Published July 8, 2026
- What Is Rebar?
The steel bar that carries the tension concrete cannot.
Published July 8, 2026
- Rebar Spacing for a Concrete Slab
How to read a spacing callout, what cover does, and who decides the number.
Published July 8, 2026