By Greg Allan, tradesman and creator of Data First Coaching
Why does a safety incident cost more than it looks like on the quote?
For a carpenter, a framing job, a deck build or a fit-out is quoted on timber, hardware, labour and travel, with the day rate or fixed price set to leave a margin once those costs are paid. When a nail gun injury, a fall from a half-built frame or a stop-work notice happens, the cost rarely shows up as a line item. It turns up later, as lost days, a damaged relationship with the builder, or a subcontract that quietly stops coming.
Most carpentry businesses price renovations and day rates on the assumption the crew turns up every day and the job runs to plan. An apprentice off work with an injury, a builder pausing the whole site, or a WorkSafe visit that slows a fix-out all eat into that plan without ever being budgeted for. The number that tells the truth here is not the quote, it is the gross profit margin the job actually returns once everything unplanned has been paid for.
What happens when safety is treated as paperwork for the apprentice to sign?
Many carpentry businesses handle health and safety as a form signed on day one and a toolbox talk that gets skipped once the crew is flat out across framing, decking and fix-out sites. Treated that way it protects nobody, because the duty sits with the business owner, not the worker who signed the form.
A carpenter who checks the site, the access and the scaffold before the crew starts is doing something a homeowner or even a builder cannot properly assess for themselves. It is part of the value a serious carpentry business brings to a job, not an inconvenience bolted on. Losing a crew member to an injury or burnout can also pull the owner straight back onto the tools, undoing exactly what spreading crews across multiple sites was meant to achieve.
What are my health and safety duties as a carpentry business owner in New Zealand?
As a carpentry business owner you are what the Health and Safety at Work Act 2015 calls a PCBU, a person conducting a business or undertaking, whether you are a sole carpenter, you subcontract to builders, or you run a crew of your own. According to the Introduction to the Health and Safety at Work Act 2015, a PCBU must ensure, so far as is reasonably practicable, the health and safety of your workers and that anyone else your work could put at risk, including other trades or the homeowner, is not harmed.
This is called the primary duty of care, and it sits with you as the owner even if an apprentice, a subbie or a labour-hire worker is the one holding the nail gun. WorkSafe New Zealand is the regulator that administers the Act. If you manage or control a site, for example running a renovation as the lead trade, the Act also requires you to ensure the workplace itself, and the way people get in and out of it, is without risk, under the Health and Safety at Work Act 2015.
What must I manage on a framing, deck or fix-out site to meet these duties?
Under WorkSafe's guidance on PCBU duties, you must try to eliminate a risk first, and where that is not reasonably practicable, minimise it, covering everything from working at height on a two storey frame to the scaffold a deck or pergola crew works off. Where your crew works alongside a builder's other trades, the same guidance names a carpenter working alongside other trades as an example of overlapping duties, meaning each PCBU must consult, cooperate and coordinate rather than one assuming the other has it covered.
Scaffolding used on a deck, pergola or second storey fix-out sits under this duty and under the scaffolding guidance for New Zealand. Renovation work on an older home carries its own layer of duty: WorkSafe's asbestos guidance notes that older buildings are more likely to contain asbestos, which changes what a strip-out or a demolition on that job can involve.
How do the record keeping and notification duties work, and what can carry that load?
According to WorkSafe's page on offences and penalties, you must provide PPE to your employees at no cost to them, keep it maintained, and keep records of any notifiable event for at least five years. WorkSafe's construction page sets out that you must notify WorkSafe of serious injuries and illnesses, and for specific scheduled work such as certain jobs at height or excavations, as well as giving general training, instruction and supervision under general risk and workplace management.
This is general information, not legal, tax or employment advice. Check your own situation with the body named here or a qualified adviser.
For a carpentry business this record keeping is exactly the kind of non-billable office work that gets done badly when it depends on memory at the end of a chippy's long week. Working data first, from your own job and incident records rather than from memory at the end of the month, is what turns this duty from a dusty folder into something that actually protects margin. An AI agent, software that does a job the way you would, using your own forms, your own wording and your own site rules, can hold inductions, PPE checks and incident records against each job and each worker without anyone chasing paper on a Friday afternoon. AI agents built this way do not replace your judgement on site, they make sure the paperwork that proves you met your duty is never the thing left undone.
Picture a carpenter running framing, deck and fix-out crews across several sites, where inductions, incident forms and onboarding for new apprentices were scattered across a folder, a phone and a separate text thread for the team. The owner built his own tool for the crew, one that pulls job information in and keeps forms, site-specific inductions, an incident register and onboarding together in one place, so what has been signed, and what happened on which site, no longer depends on someone's memory.
Where can you check the current rules?
- Introduction to the Health and Safety at Work Act 2015 explains what a PCBU is and the primary duty of care.
- Appendix C: Health and Safety at Work Act duties sets out risk management and overlapping PCBU duties.
- Construction covers WorkSafe's focus areas on sites and when to notify WorkSafe.
- Scaffolding in New Zealand covers roles and responsibilities around scaffolding.
- General risk and workplace management covers training, instruction, supervision and PPE duties.
- Offences and penalties under the Health and Safety at Work Act 2015 covers PPE cost rules and notifiable event record keeping.
- Explaining the legislative requirements for managing asbestos covers when asbestos rules apply to renovation and demolition work.
- Health and Safety at Work Act 2015 is the full Act, including the duty of a PCBU managing or controlling a workplace.
How does Data First Coaching approach this?
Data First Coaching does not start by asking a carpentry business owner to describe their safety record from memory. Greg Allan starts from the owner's own job data through the Trade Business Intelligence, looking at which jobs ran over on labour, which sites had delays, and where an injury, a stop-work or a lost apprentice actually hit gross and net margin, so the real cost of a safety gap shows up instead of staying hidden in the numbers. Greg teaches that “we want to protect you and your team”, because losing a team member pulls the owner straight back onto the tools. The how, building the systems and agents that carry this load, is worked through inside the Academy, with members, because the Trade Business Intelligence is powered by every member who joins it.
Looking for a business coach who starts from your numbers? Carpenter Business Coach or every answer for carpenters.
