Large Format Stone / Porcelain Slab Tiling SWMS

Installation of large format stone and porcelain slabs (typically 1.6m x 3.2m and larger, often 6mm-20mm thick) is high-risk construction work under WHS Regulation 2011 r291 due to the combined exposure to respirable crystalline silica (RCS) during wet cutting, manual handling loads exceeding 40kg per panel, and the structural risk of slab fracture during lifting, transport and bedding. These slabs commonly weigh 60-120kg and require vacuum suction frame rigs, multi-person carries and precise mortar bed preparation. A Safe Work Method Statement is mandatory before work commences because the task simultaneously triggers multiple HRCW categories and engages the engineered stone and silica provisions reinforced under the 2024 national prohibition framework. This SWMS documents the hazard identification, hierarchy of controls, PPE matrix and worker consultation record required to demonstrate compliance to the principal contractor, the regulator and the PCBU's own due diligence obligations.

Hazards identified

7 hazards covered, sorted by priority.

Control measures

Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.

1. 1Elimination — Order slabs pre-cut to size, pre-mitred and pre-drilled at the supplier's factory under enclosed wet-cut conditions to eliminate on-site silica generation
2. 2Elimination — Specify low-silica porcelain (<5% crystalline silica) in lieu of engineered stone or high-silica sintered products at the design/selection stage
3. 3Substitution — Substitute angle grinder dry-cutting with rail saw wet-cutting systems delivering continuous water flow at minimum 0.5L/min to the blade interface
4. 4Engineering — Use dedicated vacuum suction frames with dual independent vacuum circuits, audible low-pressure alarms and load rating verified ≥2x slab weight before each lift
5. 5Engineering — Provide M-class or H-class HEPA-filtered dust extraction on any dry tooling (drilling, edge profiling) and bunded slurry collection trays at cutting stations
6. 6Administrative — Conduct daily pre-start verification of suction cup cleanliness, battery charge, water feed pressure and RCD function; record in plant inspection log
7. 7Administrative — Limit individual lift share to ≤25kg per worker via mandatory 4-person carry protocol for slabs >80kg; rotate cutting operators every 2 hours
8. 8Administrative — Implement air monitoring program per AS 2985 with personal sampling at SWMS commissioning and every 6 months, results communicated to workers
9. 9PPE — Provide P2 reusable half-face respirators (minimum), fit-tested per AS/NZS 1715, upgraded to PAPR for any task exceeding 30 minutes of cutting in enclosed spaces
10. 10PPE — Issue cut-resistant Level D gloves, AS/NZS 1337 safety eyewear, Class 5 hearing protection, steel-capped waterproof boots and waterproof aprons for wet cutting operators

Applicable Codes of Practice

High-Risk Construction Work triggered

Worked example

On a high-end residential bathroom renovation, a two-person tiling crew is scheduled to install 1.6m x 3.2m porcelain slabs to the shower walls and vanity splashback. At the 6:45am pre-start, the leading hand opens this SWMS on a tablet at the site shed and walks the apprentice through the hazard register. They identify that today's work includes mitred 45-degree returns at the shower niche — a task flagged as high-risk silica generation. The SWMS directs them to set up the rail saw on the driveway under the carport with bunded slurry tray, connect the continuous water feed, and verify RCD function on the temporary board. Both workers fit-test their P2 respirators using the documented procedure and sign onto the SWMS digitally, noting their respirator serial numbers. Mid-morning, the apprentice reports the water feed pressure has dropped. Following the SWMS escalation pathway, work stops, the leading hand inspects the pump, finds a kinked supply line, rectifies it and records the stop-work event in the daily log before resuming. During the slab lift onto the wall, the SWMS-mandated 4-person carry protocol is followed by calling in two carpenters from the adjacent trade, briefed on the suction rig low-pressure alarm and the exclusion zone beneath the lift path.

Related legislation

• WHS Act 2011 (model)
• WHS Regulation 2025
• Crystalline Silica — National Strategy + CoP

Frequently asked questions