Steel Shed Construction SWMS

Pre-engineered steel shed construction integrates concrete slab preparation, structural frame erection, roof and wall cladding installation, roller door fitting, and final electrical rough-in into a single high-risk sequence typically delivered over five to ten days on rural, industrial, and commercial sites. The work triggers multiple High Risk Construction Work under section 291 categories under WHS Regulation 2025, principally falls from height during roof sheet fixing and the risk of structural collapse during partial frame erection before bracing is fully tensioned. A Safe Work Method Statement is mandatory under WHS Reg s.291 before any HRCW commences, must be prepared in consultation with workers under s.47-49, and must be available for inspection by the regulator for the duration of the work. The SWMS must also align with the NCC Volume 2 Class 10a structural requirements, AS 4600 cold-formed steel specifications, and any state-issued building permit conditions. Failure to develop, communicate, and apply this SWMS exposes the PCBU to enforcement action and personal liability for officers under s.27.

Hazards identified

7 hazards covered, sorted by priority.

Control measures

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

1. 1Elimination — Pre-assemble roof frames and bays at ground level on the slab and lift completed assemblies into position using a crane to remove worker exposure to elevated assembly tasks.
2. 2Elimination — Schedule cladding works outside forecast wind events above 35 km/h by monitoring BoM hourly updates and stopping work when sustained gusts exceed the manufacturer's installation limit.
3. 3Substitution — Replace standard 6-metre sheets with shorter modular panels where the design allows, reducing manual handling load and wind-sail exposure during fixing.
4. 4Engineering — Install perimeter edge protection compliant with AS/NZS 4994.1 along all roof edges before any sheet fixing commences, including mid-rails and toe boards.
5. 5Engineering — Use temporary guy ropes, knee bracing, and prop sets on every column and rafter immediately on erection per the engineer's sequence drawing before releasing crane slings.
6. 6Engineering — Maintain a 6.4-metre exclusion zone from overhead powerlines under the network operator's Look Up and Live framework; deploy a dedicated spotter and tiger tails where unavoidable.
7. 7Administrative — Conduct daily pre-start briefings using this SWMS, with sign-on register, weather check, and confirmation that bracing sequence matches the structural drawings.
8. 8Administrative — Issue High Risk Work Licences verified for all crane and dogger personnel and confirm electrical rough-in is performed only by a licensed A-grade electrician with isolated supply.
9. 9PPE — Issue and enforce wear of cut-resistant Level C gloves, safety glasses to AS/NZS 1337, steel-cap boots to AS/NZS 2210.3, and hi-vis to AS/NZS 4602.1 across all task phases.
10. 10PPE — Provide and fit-test full-body harnesses to AS/NZS 1891.1 with twin lanyards anchored to engineered anchor points for any residual at-height work where edge protection is incomplete.

Applicable Codes of Practice

High-Risk Construction Work triggered

Worked example

On a 12-metre by 24-metre industrial shed build on a regional Australian lot, the site supervisor opens the pre-start brief at 6:45am by laying this SWMS on the tailgate of the ute and walking the four-person crew through each hazard line. The weather app confirms gusts peaking at 28 km/h — under the 35 km/h cladding threshold documented in the controls section — so roof sheet fixing remains on the day's plan. The crew identifies that yesterday's erection finished with three rafters guyed but not yet fly-braced, so the supervisor cross-checks the structural drawing and confirms fly braces must be installed before the dogger releases the next bay from the telehandler. Each worker initials the sign-on register, the crane operator's HRWL is sighted, and harnesses are inspected against the AS/NZS 1891.1 checklist. Mid-morning, a cross-wind shift triggers sheet flap on the partially-clad western wall; the leading hand invokes the stop-work clause in the SWMS, the crew adds temporary strapping, and the supervisor annotates the SWMS variation log so the amended control is captured for the regulator and signed by all affected workers before fixing resumes.

Related legislation

• WHS Act 2011 (model)
• WHS Regulation 2025
• Managing the Risk of Falls at Workplaces CoP

Frequently asked questions