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  • Attractive perforation pattern without compromising installation, performance and noise mitigation
  • Concealed starter clips and interlocking panels provide a clean, professional finish
  • Standard perforations, 2.4mm in diameter, leave an open area of approximately 11% of cladding surface and pitched symmetrically to provide the best balance between appearance, easy installation, cladding performance and noise reduction
  • Ideal for public halls, auditoria and sports venues

Base Material Thickness (mm): 0.42

Finish: G550 coated steel

Limited colour range is available so please contact your local Stramit office for further information on availability.


Certain colour options and finishes may be subject to availability and lead times may vary from site to site. Please contact your local Stramit office to confirm.

Where to Buy

Stramit account holders can buy Stramit Monopanel® Perforated Panels from their local Stramit office. We do not sell direct to the public but our products are stocked by retail outlets across Australia.

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This product is available on request and subject to minimum order quantities and longer lead times. Lead times may vary depending on location.

News and Case Studies

Check out Stramit’s latest news, product releases and updates, and case studies featuring our quality Aussie-made steel products.

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General Information close-medium-white

Many internal applications for Stramit Acoustic Sheets will be relatively benign. In applications of high humidity or corrosive environments, contact your local Stramit office to discuss the optimum material choice.

All building products need to be checked for compatibility with adjacent materials. These checks need to be for both direct contact between materials, and where water runs from one material to another.

Stramit products should be handled with care at all times to preserve the product capabilities and quality of the finish.

Packs should always be kept dry and stored above ground level while on site. If the products become wet, they should be separated, wiped and placed in the open to promote drying.

Stramit Monopanel® Perforated Panel is supplied cut to length. When designing or transporting long products ensure the length is within the limit of the local Transport Authority regulations.

Manufacturing tolerance on length of product supplied is +0, -15mm.

All Stramit panels are made from steel that confirms with AS 1397.

Stramit has in-house, purpose built testing equipment used to design, develop and improve products for the Australian market.

Many of our products are tested or witnessed by independent organisations. These include University of Technology, Sydney; Cyclone Testing Station (James Cook University), The University of Sydney; and CSIRO.

Sound absorption tests on Stramit® Acoustic Sheets have been conducted by National Acoustic Laboratories using the reverberation chamber method in accordance with AS 1045.

The ongoing research and development activity ensures we remain at the forefront of innovation, design and consumer information.


Technical Information close-medium-white

The wall cladding shall be 0.48 mm BMT Stramit Monopanel® Perforated Panels in continuous lengths with ribs 15mm high, and a cover of 250mm. Sheeting material shall be protected steel sheet to AS1397 with a minimum yield stress of 300MPa (Grade G300) and an AM100 zinc-aluminium-magnesium coating with an oven-baked paint film of selected colour, or a plain AM125/AZ150 coating.

The sheeting shall be fixed to the girts in accordance with the manufacturer's recommendations. Suitable fixings in accordance with Australian Standard AS3566, Class 3, shall be used as per manufacturers recommendations. Flashings shall be supplied in compatible materials as specified, minimum cover of flashing shall be 50mm.

All sheeting shall be fixed in a workman like manner, leaving the job clean. Repair minor blemishes with touch-up paint supplied by the sheeting manufacturer. All debris (nuts, screws, cuttings, filings etc.) shall be cleaned off daily.

Use one fastener per panel per support.

Fix using 10-16 x 16 wafer-head screws to steel supports.

For wall areas likely to be subject to human impact, sheeting spans should be reduced. Impact loads will vary considerably and these are not prescribed in Australian Standards.

A maximum span of 900mm is suggested for such areas, but this should be adjusted dependent upon the exposure and importance of the application.

Stramit Monopanel® Perforated Panels are manufactured from G300 colour coated steel or zinc-aluminium alloy coated steel. In some locations galvanised and severe environment colour coated steel may be available by arrangement.

Colour coated steels are in accordance with AS2728 – Category 3 and, for the substrate, with AS1397. Zinc-aluminium alloy coated AZ150, aluminium-zinc-magnesium alloy coated AM100/AM125 and galvanised Z450 conform to AS1397.

Stramit standard perforations cover approximately 11% of the cladding surface. Holes are 2.4mm in diameter and are pitched symmetrically across the sheet.

This layout gives the best balance between appearance, ease of installation cladding performance and noise reduction.

Contact our technical services consultants if you require a different hole pattern.

Stramit Monopanel® Perforated Panels may be subjected to loads from impact or limited by acceptable deflection. Maximum recommended spans in millimetres for each profile are shown in the table below. For most expected applications, the panels will not be subject to wind  loading.

However if either should be applicable, please refer to the relevant Stramit Technical Product Manual for these capacities.

Installation Information close-medium-white

Stramit's cladding can be easily cut, where required, using a power saw with a steel cutting blade or a power nibbler and, for localised cutting, tin snips. Avoid the use of abrasive discs as these can cause burred edges and coating damage. Please dispose of any off-cuts carefully.


Consideration should be given to handling and installation issues as part of site induction safety procedures. Specific consideration should be given to pack handling, avoidance of cuts, trips, slips and falls, long section handling, particularly in windy conditions, section cutting procedures and surface temperature on sunny days.

Wear safety glasses with side shields when cutting or trimming product. Cut resistant or leather gloves should be worn when handling product. Foot protection should be warn when handling and transporting product.

Stramit recommends installers follow the installation code for metal roofing and wall cladding as outlined in the Standard Australia Handbook – HB39. 

Maintenance Information close-medium-white

Should it be necessary to wash Stramit Acoustic Sheets, use the following procedure:

  • Wash the surface with a mild solution of pure soap or non-abrasive, non-toxic, kitchen detergent in warm water using a sponge, soft cloth or a soft bristle nylon brush.
  • Thoroughly rinse with clean water immediately after use.
  • Never use abrasive or solvent type cleaners, such as turps, petrol, thinners or kerosene, on COLORBOND® steel.