Concrete Grinding And How Much Can A Grinder Remove?

Concrete Grinding And How Much Can A Grinder Remove?

The Concrete Grinding process is also used to level very small highs in concrete slabs up to 3 MM, grind expansion joints level, and prepare surfaces for the application of levelling compound or for the re-installation of floor coatings or floor coverings such as Ceramic Tiles, Carpet Tiles, Vinyl Flooring, Linoleum Flooring, Floorboards, Laminate or any other Flooring System as they all need a clean smooth and porous slab to bond too.

Concrete Grinders often only remove a thin layer of material from the surface per pass. Typically, diamond grinding tools only remove between 0.25 MM to 0.50 MM per pass for a maximum depth of 3 MM.

Industrial or heavy-duty Concrete Grinders with correct diamond tooling or other tooling can grind depths of up to 6 MM.

After this point, a ‘Concrete Scarifier‘ or ‘Concrete Shotblaster‘ must be used to get further depth

Regarding how many MM can be taken off, please follow the guide below:

– Concrete Grinding – Residential – (3MM MAX)
– Concrete Grinding – Commercial – (6MM MAX)

– Bump Removal – (8MM MAX)

– Coating Removal – (6MM MAX)
– Coating Removal – Double Layer – (12MM MAX)

– Concrete Scarifier – (6MM / PER PASS)
– Concrete Shotblaster – Concrete Removal – (2MM – 3MM / PER PASS)
– Concrete Shotblaster – Coating Removal – (10MM / PER PASS)

– Floor Levelling – (1MM – 100MM / RAISE)
– Concrete Cutting – (Up to 1/4 of the thickness of the concrete slab)

Still Unsure? Talk To A Concrete Grinding Expert

Need Professional Concrete Grinding In Sydney?

While these tips help explain the basics of depths, heights and how to achieve them, achieving a truly flat and durable surface usually requires specialised equipment and experienced operators. Professional grinding uses heavy-duty concrete grinders, industrial dust extraction systems, and precision tooling designed specifically for effective Mechanical Concrete Surface Preparation.

If you’re dealing with uneven concrete, adhesive residue, surface contamination, or high spots in a slab, professional concrete grinding in Sydney can restore the surface to a flat, clean condition ready for new flooring, coatings, waterproofing systems, or polished concrete finishes.

Our team specialises in slab levelling, adhesive removal, trip hazard correction, and complete surface preparation for residential, commercial, and industrial concrete floors across Sydney.

Learn More About Our Professional Concrete Grinding Services In Sydney