Product Overview

Summary: This Safe Operating Procedure sets out safe, consistent techniques for installing lath in Australian construction and refurbishment projects. It helps trades and supervisors control key WHS risks such as falls, manual handling injuries, and tool-related incidents while delivering high‑quality substrates for plaster, render, and cladding systems.

Lath installation is a critical foundation activity for many wall and ceiling systems, including plaster, render, and lightweight cladding. Done poorly, it can lead to cracking, delamination, moisture ingress, and costly rework. Done unsafely, it exposes workers to falls from height, repetitive strain injuries, sharp edges, and power tool hazards. This Safe Operating Procedure provides a clear, step‑by‑step method for installing timber, metal, or synthetic lath systems in line with Australian building and WHS requirements.

The document guides your team through site preparation, selection of the correct lath type and fixings, safe handling and cutting techniques, and secure fixing patterns to meet manufacturer specifications and Australian Standards. It embeds WHS risk controls into every stage of the task, from working on scaffolds and trestles to using nail guns, drills, and cutting tools. By implementing this SOP, businesses can standardise installation quality across crews, reduce defects and call-backs, and demonstrate a diligent, documented approach to managing construction risks under Australian WHS legislation.

Whether you are working on residential builds, commercial fit‑outs, or refurbishment projects, this SOP supports consistent workmanship and safer site practices. It is designed to integrate with your existing SWMS, site safety plans, and quality management systems, providing a practical, ready‑to‑use procedure that supervisors can brief and workers can follow on the tools.

Key Benefits

• Ensure lath installation is carried out safely, consistently and in line with Australian WHS and building requirements.
• Reduce the risk of falls, cuts, eye injuries and manual handling strains during cutting, lifting and fixing of lath.
• Improve installation quality by standardising fixing patterns, spacing, and substrate preparation across all crews.
• Minimise costly rework, cracking and system failures by aligning field practices with manufacturer instructions and relevant standards.
• Support easier onboarding and competency assessment of new workers and apprentices through a clear, documented procedure.

Who is this for?

• Carpenters
• Plasterers and Solid Plasterers
• Bricklayers and Renderers
• General Builders
• Site Supervisors
• Construction Project Managers
• WHS Advisors and Safety Coordinators
• Apprentices in Carpentry and Plastering
• Maintenance and Facilities Teams

Hazards Addressed

• Falls from height when installing lath on walls, ceilings, soffits or facades
• Manual handling injuries from lifting, carrying and positioning sheets, rolls or bundles of lath
• Cuts and puncture wounds from sharp lath edges, offcuts and fixings
• Eye and face injuries from flying particles during cutting, drilling or nailing
• Noise exposure from power tools and nail guns
• Hand–arm vibration from prolonged use of power tools
• Electric shock when drilling or fixing near live services
• Slips, trips and falls due to poor housekeeping, offcuts and fixings on the work area
• Respiratory irritation from dust and debris generated during cutting or surface preparation

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Types of Lath (Timber, Metal, Synthetic)
• 3.0 Roles and Responsibilities
• 4.0 Required Competencies, Training and Licensing
• 5.0 Tools, Equipment and Materials
• 6.0 Personal Protective Equipment (PPE) Requirements
• 7.0 Pre‑Start Planning and Site Preparation
• 8.0 Hazard Identification and Risk Controls
• 9.0 Working at Height and Access Equipment Requirements
• 10.0 Manual Handling and Material Storage Procedures
• 11.0 Safe Cutting, Trimming and Drilling Techniques
• 12.0 Fixing Patterns, Spacing and Fastener Selection
• 13.0 Installation Procedure – Walls
• 14.0 Installation Procedure – Ceilings and Soffits
• 15.0 Quality Checks and Compliance with Manufacturer Specifications
• 16.0 Housekeeping, Waste Management and Environmental Considerations
• 17.0 Emergency Procedures and Incident Reporting
• 18.0 Inspection, Maintenance and Replacement of Tools and Equipment
• 19.0 Document Control, Review and Continuous Improvement

Legislation & References

• Work Health and Safety Act 2011 (Cth) and equivalent state and territory WHS Acts
• Work Health and Safety Regulations 2011 (Cth) and equivalent state and territory WHS Regulations
• Safe Work Australia – Model Code of Practice: Construction Work
• Safe Work Australia – Model Code of Practice: Managing the Risk of Falls at Workplaces
• Safe Work Australia – Model Code of Practice: Hazardous Manual Tasks
• AS/NZS 1576: Scaffolding (series)
• AS/NZS 1891: Industrial fall-arrest systems and devices (series)
• AS/NZS 3012: Electrical installations – Construction and demolition sites
• AS/NZS 1715: Selection, use and maintenance of respiratory protective equipment
• AS/NZS 1270: Acoustics – Hearing protectors
• AS/NZS 4501: Occupational protective clothing
• Relevant manufacturer installation guidelines for specific lath and render/plaster systems