Guides
Straight answers from our engineers
The questions we are asked most, answered properly. Written and reviewed by a Chartered Professional Engineer.
What is a PS1? Producer Statements Explained
A plain-English guide to New Zealand producer statements: what a PS1 covers, how it differs from a PS4, who can issue them, what they cost and when your building consent needs one.
Read the guideWhen Does a Retaining Wall Need Consent in NZ?
The New Zealand retaining wall consent rules in plain English: the 1.5 metre threshold, what counts as a surcharge, when you need an engineer, and how the design process works.
Read the guide
Let's talk
Ready to build with confidence?
Tell us about your project and we will get back to you with practical engineering advice and a free, no-obligation quote.