{{ propApi.closeIcon }}
Our industry
Our industry $vuetify.icons.faArrowRight
Economic research & forecasting Economics Housing outlook Tailored market research Economic reports & data Inspiring Australia's building professionals Business & digital Products & innovation Projects HOUSING Online The only place to get your industry news Media releases Member alerts Submissions See all
Business support
Business support $vuetify.icons.faArrowRight
Become an apprentice host Hire an apprentice Why host a HIA apprentice? Apprentice partner program Builder & manufacturer program Industry insurance Construction legal expenses insurance Construction works insurance Home warranty insurance Tradies & tool insurance Planning & safety solutions Building & planning services How can safety solutions help you? Independent site inspections Solutions for your business Contracts Online HIA Tradepass HIA SafeScan Advertise jobs Trusted support & guidance Contracts & compliance support Professional services Industrial relations Member savings Toyota vehicles Fuel savings Handy pay See all
Resources & advice
Resources & advice $vuetify.icons.faArrowRight
Building it right Building codes Australian standards Getting it right on site See all Building materials & products Concrete, bricks & walls Getting products approved Use the right products for the job See all Managing your business Dealing with contracts Handling disputes Managing your employees See all Managing your safety Falls from heights Safety rules Working with silica See all Building your business Growing your business Maintaining your business See all Other subjects COVID-19 Getting approval to build Sustainable homes See all
Careers & learning
Careers & learning $vuetify.icons.faArrowRight
A rewarding career Become an apprentice Apprenticeships on offer Frequently asked questions Study with us Find a course to suit you Qualification courses Learning on demand A job in the industry Get your builder's licence Continuing Professional Development (CPD) Find jobs
HIA community
HIA community $vuetify.icons.faArrowRight
Join HIA Sign me up How do I become a member? What's in it for me? Mates rates Get involved Become an award judge Join a committee Partner with us Our initiatives GreenSmart Kitchen, bathroom and design hub Get to know us Our members Our people Our partners Support for you Charitable Foundation Mental health program
Awards & events
Awards & events $vuetify.icons.faArrowRight
Awards Awards program People & Business Awards GreenSmart Australian Housing Awards Awards winners Regional Award winners Australian Housing Award winners 2023 Australian Home of the Year Enter online Industry events Events in the next month Economic outlook National Conference Events calendar
HIA products
HIA products $vuetify.icons.faArrowRight
Shop @ HIA Digital Australian Standards Contracts Online Shipping & delivery Purchasing T&Cs See all Products Purchase NCC 2022 Building codes & standards Economic reports Hard copy contracts Guides & manuals
About Contact Newsroom
$vuetify.icons.faMapMarker Set my location Use the field below to update your location
Change location
{{propApi.text}} {{region}} Change location
{{propApi.successMessage}} {{region}} Change location

$vuetify.icons.faPhone1300 650 620

Metal tie brackets and sharp edges

Metal tie brackets used as timber connectors in house construction to tie roof trusses, wall frames and other timber components, often have sharp edges that pose risks to the safety of workers when needing to work near these components.

Injuries such as cuts, slashes and lacerations often involve contact with sharp edges from installed tie brackets. Multi-grip and universal brackets and similar types of ties often leave exposed sharp edges once installed and have caused serious injuries – see Figure 1 below.

Universal bracket leaving sharp edges
Universal bracket leaving sharp edges

Similar injuries can occur with other metal components that have sharp edges. These include metal roofing brace, steel strap and metal fascia and gutter components. However, this article focuses on the safety issue posed by the above tie brackets and how they are installed.

Under workplace health and safety laws, A Person Conducting Business or Undertaking (PCBUs,) including builders, contractors and employers have obligations to provide a safe workplace for their workers. This includes an obligation to eliminate risks to health and safety. If elimination is not reasonably practicable, risks must be reduced so far as is reasonably practicable.

Control measures

The first step is to try to eliminate the risk of injury. For example, by using tie methods that do not involve the use of metal tie brackets such as proprietary truss screws.

If elimination is not reasonably practicable, can a safer metal bracket tie system be used? For example, using angle brackets instead of multi-grip and universal brackets in configurations that do not leave protruding edges once installed.

If multi-grip and universal brackets are used, can other methods be used that avoid exposing workers to the sharp edges? For example, by blocking between the truss or rafter spacing.

The following additional safe work practices will also assist to reduce risks of injury:

  • Include sharp edge hazards and the control measures to minimise risk of injury in the safe work procedures for the work.
  • Include the need for protective footwear, such as boots and protective gloves.
  • Train workers (e.g., via inductions or toolbox talks) on the types of products and installations that posed hazards and safe work procedures.
  • Provide adequate supervision to ensure safe work procedures are adhered to.

To find out more, contact HIA's Building Services team.

Email us

Share with your network:
More articles on:
{{ tag.label }} {{ tag.label }} $vuetify.icons.faTimes
Find the latest expert advice, guides and much more!

HIA Safety solutions


Our qualified specialists can provide one on one tailored consultancy to meet your business' needs.

Take me there

Managing your safety topics


Can’t find what you need, check out other resources that might be closer to the mark.

AS 1684.2-2010 Residential timber-framed construction Non-cyclonic areas

AS 1684.2 Residential timber-framed construction provides the building industry with procedures that can be used to: - determine building practice - d...

AS 1684.3-2010 Residential timber-framed construction Cyclonic areas

AS 1684.3 Residential timber-framed construction provides the building industry with procedures that can be used to: - determine building practice - d...

AS 1684.4-2010 Residential timber-framed construction Simplified - Non-cyclonic areas

AS 1684.4 Residential timber-framed construction provides simpler design procedures than those contained in AS1684.2, for N1/N2 wind classifications o...