FRAME INSTALL
Prefabricated timber wall frames are craned or lifted into position on the slab. Bottom plates are fixed to the slab using chemical anchors or cast-in fixings as specified by the structural engineer.
Major Build Stages
Structure takes shape.
Frame stage transforms a concrete slab into a recognisable structure. Wall frames, roof trusses and bracing systems are erected and inspected before any cladding proceeds. Structural integrity is established here, and must be verified at every level.
Stage 3 of 6. 12 minor events covered.
Click any event to see what's covered and how it's delivered on the platform.
Frame Install
3 delivery methods
Trusses Install
3 delivery methods
Posi-Joist Flooring
2 delivery methods
Rafter Fallguard
3 delivery methods
First Floor Protection
2 delivery methods
Windows & Sliding Doors
3 delivery methods
Structural Steel
3 delivery methods
Bracing & Tie-Down
4 delivery methods
Staircase Rough-In
2 delivery methods
Sarking & Roof Underlay
2 delivery methods
Fascia & Barge Boards
3 delivery methods
Frame Stage Inspection
4 delivery methods
Prefabricated timber wall frames are craned or lifted into position on the slab. Bottom plates are fixed to the slab using chemical anchors or cast-in fixings as specified by the structural engineer.
Roof trusses are crane-lifted onto the wall frame and fixed per the truss manufacturer's bracing layout. Temporary bracing must be in place before the crane leaves; improperly braced trusses are a safety and structural risk.
Open-web steel-chord floor joists (Posi-Joists) are used in upper floor systems. They allow services to run through the web without drilling, and their depth is engineered to minimise deflection under load.
Edge protection (scaffolding or fallguard systems) is mandatory on all roofs above 3m. This is a WH&S requirement; any person working at height must be protected from falls by compliant edge protection systems.
The structural floor deck (particleboard or concrete) is installed on upper floor joists. Protecting this surface from weather and trades damage is critical; wet particleboard loses structural integrity rapidly.
Window and door frames are installed into openings and tied into the wall frame. Correct installation of flashing, sill drainage and head flashings at this point prevents water ingress during lock-up cladding.
Steel beams, columns and lintels are installed where timber is inadequate for the required spans or loads. Steel connections must be made exactly to the engineer's detail; weld quality and bolt torque are inspection hold points.
Wall and roof bracing must be installed exactly to the bracing layout plan. Every brace type, fixing and anchor strap has a design load; incorrect installation is a leading cause of frame inspection failures.
Structural stringer carriages are installed for internal stairs. Headroom, tread depth, riser height and balustrade fixing points must comply with the BCA; these dimensions are difficult to correct after lining.
A reflective foil sarking or vapour permeable membrane is installed under roof cladding as a secondary water barrier. It also improves the roof's thermal performance and is required under NCC Energy provisions in most climates.
Fascia boards (horizontal) and barge boards (raked) are fixed to the ends of rafters and trusses to form the eave profile. These must be accurately aligned before guttering is installed.
A mandatory inspection by the building surveyor is required before roof cladding proceeds. The inspector checks frame dimensions, bracing, tie-downs, structural connections and compliance with approved drawings.