How to Reinforce a Concrete Slab: Rebar, Mesh & Fiber
Most slabs need reinforcement. This guide shows whether to use rebar, wire mesh, or fiber, how to lay out the grid, and where steel sits in the pour — by slab type.
Reinforcement
Rebar sizing, spacing, weight, and wire mesh guides for reinforced concrete construction.
Rebar Sizing, Spacing & Concrete Cover: A Practical Reinforcement Reference
Rebar reinforces concrete against tensile cracking. This guide covers bar sizes (#3–#8), spacing rules, required concrete cover by exposure, weight per linear foot, and worked examples for slabs, footings, and beams — with links to the Rebar Calculator, Rebar Spacing Calculator, and Wire Mesh Calculator.
Featured Tool
Need instant results? Use the Rebar Calculator.