TC1, TC2 or TC3? What Your Technical Category Means for Your Build
Published on: 01/10/2026
A plain-language guide to TC1, TC2 and TC3 land classifications and what each means for your foundation design.
TC1TC2TC3foundationsliquefaction
Liquefaction and Your Section: What It Means for Your Foundations
Published on: 01/10/2026
A plain-language look at liquefaction, how it can affect your section, and why it matters for your foundation design.
liquefactionfoundationsgeotechnicalTC1 TC2 TC3NZ building code