Chartered Engineering for Ground & Subfloor Systems (NZ)

A sound foundation is the start of every successful build. Sturdy Structures delivers consent-ready foundation and subfloor-bracing designs—slabs, piles, and raised timber or light-steel floors—optimised for your site’s soils, geometry, and loads.

What We Do

• Concrete foundations – raft, waffle, and slab-on-grade systems engineered by CPEng

• Pile solutions – timber piles, bored piers, screw or driven piles for bearing and settlement control

• Subfloor framing – timber or light-gauge steel bearer–joist systems detailed for durability and buildability

• Bracing design – wind and seismic bracing with drift/diaphragm checks for code compliance

• Soil–structure integration – geotech coordination, bearing-capacity checks, settlement mitigation

• Complex sites (SED) – sloping ground, liquefaction/reactive soils, and other non-standard conditions
  
  

Compliance & Certification (NZ)

• Producer Statements: PS1 design, PS2 independent review (as required), and PS4 construction observation

• Standards: NZS 3604, NZS 1170 (series), B1/VM/AS, B2 Durability, and project-specific references (e.g., NZS 3101, NZS 3404)

• Deliverables: clear calculations, drawings, specifications, and consent-ready documentation to reduce RFIs
  
  

Typical Projects

• New homes, townhouses, duplex/terrace developments

• Minor dwellings and additions on challenging sites (TC2/TC3, slope, liquefaction)

• Light commercial fit-outs and small ancillary buildings with engineered subfloors