Microcement Thickness – Just 2-3mm

Layer-by-Layer Thickness Breakdown

Understanding how microcement achieves its overall 2-3mm thickness helps clarify why each layer matters. The primer is a penetrating coating with negligible build thickness — its role is adhesion enhancement, not fill. The scratch coat is the thickest layer at 1-1.5mm — it provides the structural foundation of the system and embeds reinforcement mesh at stress points. The two finish coats each contribute approximately 0.5mm, bringing the total system to 2-3mm.

This minimal thickness is one of the most practically significant characteristics of microcement in a renovation context. When you compare it to the 12-20mm thickness of a ceramic tile installation (tile, adhesive and grout combined), the difference is striking. Applying microcement over existing tiles in a bathroom adds only 2-3mm to the finished floor level — compared to a re-tile which, even if applied directly over the existing tiles, would add another 12-20mm before the new grout. This difference is the reason microcement can be applied over existing tiles without affecting door clearances, skirting boards or adjacent floor transitions.

Practical Implications

In most residential renovations, the 2-3mm build-up from microcement does not require any door trimming. Skirting boards are rarely affected — the 2-3mm step at the base of the skirting is typically hidden by shadow line detail or a small bead of sealant. At room transitions, a simple threshold strip bridges the level change to adjacent rooms. None of these issues is unusual or problematic — your certified applicator will advise on the appropriate details during the project survey.