Concrete cover: why it matters and how to get it right

2026-10-02

What concrete cover is, what happens when it fails and how plastic spacers help.

Concrete cover is the distance between the concrete surface and the rebar; it protects steel from moisture, chemicals and fire.

Getting it right

Plastic spacers hold the cage at the set height during pouring and create no paths for corrosion — typically 4–6 pcs per m².