Standard joint
Most projects- Seam
- 20 mm recess
The default. Deep enough to read as a shadow line at distance without dominating the face.
System 06Wall cladding · Soffits
Cassette
Large folded trays on a concealed subframe, with a 20 mm recessed joint on all four sides.
875mm
Maximum panel width
Up to 4 m long at 600 mm wide
20mm
Recessed joint
On all four sides; 15 or 25 mm to order
26.5mm
Panel depth
A folded tray, 1.5 mm thick
4m
Maximum panel length
At 600 mm wide
The profile
Large trays,
a grid both ways.
Cassettes are folded metal trays hung from invisible clips on an aluminium subframe.
They give a flat facade with a deep recessed joint on all four sides, and they go bigger than any other panel we make, up to 875 mm wide and 4 m long. Because the tray is solid sheet metal rather than a composite, it avoids the combustibility questions attached to bonded panels. Designers specify cassettes when the module has to be large and the joint has to be crisp.
SectionCassette trays on an aluminium subframeNot to scale
- 01Cassette trayFolded metal, 1.5 mm thick and 26.5 mm deep
- 02Recessed joint20 mm on all four sides, so the grid reads horizontally and vertically
- 03Invisible clipHung from an aluminium subframe fixed back to the structure
Custom joint
To order- Seam
- 15 or 25 mm recess
A tighter or a heavier grid where the elevation calls for it.
Why specify it
Five reasons architects
choose cassette.
From the setting out on the drawings to the warranty at handover, this is what the system gives a project.
01The largest module we make
Up to 875 mm wide and 4 m long, so a big elevation can be set out in few pieces and the grid stays generous rather than busy.
02A joint on all four sides
The recess runs horizontally and vertically, so the panel reads as a true grid rather than a run of boards. The joint width is a design decision.
03Solid metal, not composite
A cassette is a folded tray in one material, tested to AS 1530.3. That keeps the fire conversation simpler than a bonded composite panel.
04Set out to the building
Panel sizes are made to the elevation rather than the other way round, so joints land on openings, floors and setbacks.
05New work and refurbishment
The subframe takes up tolerance in the wall behind, which is what makes cassettes work on an existing building as well as a new one.
Technical details
The layers
Cassettes hang from clips on an aluminium subframe, which is fixed back to the structure. These are our standard layers, from the face inwards.
- 01Cassette trayFolded metal, 1.5 mm thick and 26.5 mm deep
- 02Invisible clipsHung from the subframe, nothing visible on the face
- 03Aluminium subframeSet out to the panel grid and fixed back to the structure
- 04Ventilated cavityThe depth of the subframe, open for air to move behind the panels
- 05Waterproof sarkingFully breathable and waterproof
- 06Wall structureBy others, able to take the subframe fixings
Main structure and insulation are by others. Subframe spacing and panel sizes are confirmed for each project against the site’s wind loads.
Section through the wall layers. Not to scale.
Specification
by metal.
- Panel length depends on width: 4 m at 600 mm, 3 m at 700 mm and 2 m at 875 mm.
- Visible face runs from 220 mm to 875 mm high and from 200 mm to 4 m long, within those limits.
- The recessed joint is 20 mm as standard, with 15 mm or 25 mm made to order.
- Panels are set out to the elevation, so joints land where the design wants them.
- Aluminium is PVDF coated over a primer with at least two paint layers.
| Metal | Thickness | Standard panel width |
|---|---|---|
 Zinc (VMZINC) | 1.5 mm | Up to 875 mm widemm |
 Copper (Aurubis) | 1.5 mm | Up to 875 mm widemm |
 Aluminium (VESTIS, PVDF) | 1.5 mm | Up to 875 mm widemm |
 Corten | 1.5 mm | Up to 875 mm widemm |
- Panel size
- Up to 875 mm wide; 4 m long at 600 mm, 3 m at 700 mm, 2 m at 875 mm
- Visible face
- 220 to 875 mm high, 200 to 4000 mm long depending on the module
- Panel depth
- 26.5 mm
- Thickness
- 1.5 mm
- Joint
- 20 mm recessed on all four sides; 15 mm or 25 mm to order
- Fixing
- Invisible clips to an aluminium subframe, fixed back to the structure
- Fire
- Solid metal, non-combustible, tested to AS 1530.3
- Applications
- Wall cladding, Soffits
Invisible
clips.
Each tray hangs from clips on an aluminium subframe. Nothing passes through the face, and a single panel can be lifted off without disturbing its neighbours.
Clips
Hung from the subframe behind the tray, with nothing visible on the face.
Set out to the panel grid
Subframe
Aluminium, set out to the panel grid and fixed back to the structure.
Takes up tolerance in the wall behind
Joint
A recess on all four sides of every panel, set to suit the elevation.
20 mm standard, 15 or 25 mm to order
Details and
drawings.
Typical details for documentation. Select a drawing to view it full size, or download the full detail set.
Literature
2 documents
Full detail sets
Eaves, ridge, valley, parapet, corner, window and penetration details as PDF, with the manufacturer data behind them.
Browse the libraryCassette projects
View our work
How we deliver cassette
- 01
Review
We check the drawings, exposure and buildability, and recommend the metal and gauge.
- 02
Shop drawings
Our drafters set out every pan, clip and junction for architect approval.
- 03
Fabrication
Panels are folded in our 2,000 m² Sydney workshop and QA checked before dispatch.
- 04
Installation
Our own crews install under a dedicated project manager, then hand over warranties.
Questions
6 answered
Cassette questions
The questions estimators and drafters answer most often. If yours is not here, send the drawings and we will answer it against your project.
Ask about your projectWhat is a cassette panel?
A large folded metal tray, hung from invisible clips on an aluminium subframe, with a recessed joint on all four sides. It is the largest panel module we make and the one that reads as a true grid.
How big can a cassette panel be?
Up to 875 mm wide. Length depends on width: 4 m at 600 mm, 3 m at 700 mm and 2 m at 875 mm. The visible face runs from 220 mm high and 200 mm long upwards within those limits.
How wide is the joint between cassettes?
20 mm as standard, on all four sides. A 15 mm or 25 mm recess can be made to order where the elevation needs a tighter or heavier grid.
What is the difference between a cassette and an interlocking panel?
Scale and fixing. Interlocking panels are long and narrow and hook edge to edge straight onto top hats. Cassettes are large rectangular trays that hang on an aluminium subframe with a recess on all four sides, so the grid reads both ways.
Are cassette panels combustible?
No. A cassette is a folded tray in solid metal rather than a bonded composite, and the panels are tested to AS 1530.3. Compliance still depends on the whole wall assembly, which we confirm for each project.
Can cassettes be used on an existing building?
Yes. The aluminium subframe takes up tolerance in the wall behind, which is what makes cassettes work on refurbishment as well as new work.
Start your next project.
Send drawings or a brief. Concept sketches are enough to get a useful answer.
You send drawings or a brief
A plan, a section and an elevation are enough.
- 1business day
An estimator replies
Named contact, not a queue.
- 7days
Tender returned
Priced by system, metal and area.