
By George Giannakakis · B.Arch.Studies · M.Arch (UniSA) · RLA300580
Last reviewed: · How we research
"That lippage is over 2mm, that's a relay."
The height difference between the edges of two adjacent tiles. The word tilers use, and the word in the Australian Standard (AS 3958). Some lippage is allowed, typically 1.5mm for smooth tiles. Run your hand across a floor: if you can feel every edge, ask about lippage.


In this episode, Colin and Darren break down everything you need to know about your soil test - from what it is and how it’s classified, to why your soil class matters for your build. They also explore the key factors that can impact your results and what to do once you have them.
Watch full episodeBuildPilot is an independent Australian building platform, we publish guidance, we don't hold a building licence. Every Australian residential build must comply with the National Construction Code plus state-specific Acts and consumer-protection law. The authorities below are the primary sources of truth for the rules that actually apply to your project.
The primary national set of technical building standards that every Australian build must comply with. Volume 2 covers Class 1 & 10 buildings (most homes).
Specific material, product and method standards (e.g. AS 3700 masonry, AS 1684 timber framing) referenced by the NCC.
National peak body for residential builders. Publishes the most widely used home-building contracts and consumer guidance.
National peak body for general builders. Publishes commercial and residential contracts and industry guidance.
Links above open the public website of each authority. BuildPilot is not affiliated with these bodies and does not act on their behalf. Information on this page is general - check the current edition of the NCC and the relevant state Act for binding requirements.
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