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Acoustic Treatment & Soundproofing Products

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Petra™ Ceiling Tiles – Black | Square Edge (600x600mm) 20pcs

Painted Glass Wool Acoustic Ceiling Tiles (Box of 20)

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Size

600 x 600 x 15mm

Edge Type

Square Edge

Colour

Black (RAL9005)

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Petra™ Ceiling Tiles – 600 x 600mm, Black, Square Edge

Bring depth, contrast, and acoustic performance together with the Petra™ 600 x 600 Black Acoustic Ceiling Tile. Designed to drop seamlessly into any standard suspended ceiling grid, these tiles deliver Class A sound absorption (NRC 0.90) while making a bold design statement.

The square edge profile ensures a clean, flush finish, while the RAL9005 black painted surface creates a dramatic, modern look that’s perfect for auditoriums, studios, offices, restaurants, or anywhere ambience and sound clarity are equally important.

Not just about style, Petra™ ceiling tiles are lightweight, durable, and fire-rated to A2-s1,d0, giving you the reassurance of high safety standards alongside excellent acoustic control.

Key Features

✅ Striking Black Finish – RAL9005 paint adds sophistication and contrast to ceilings.
✅ Acoustic Excellence – NRC 0.90, Class A sound absorption for clearer, calmer spaces.
✅ Flush Square Edge – Fits neatly into ceiling grids with a seamless appearance.
✅ Lightweight Glass Wool Core – Eco-friendly and easy to handle.
✅ Fire Safety Rated – A2-s1,d0 classification for peace of mind in all environments.
✅ Stocked in the UK – Available with short lead times for fast project turnaround.
✅ Durable Painted Finish – Resistant to wear and easy to maintain.

Ideal For

✔ Cinemas & Theatres – Deep black finish complements lighting and enhances sound.
✔ Recording & Media Studios – Reduce reverberation and improve sound clarity.
✔ Hospitality Venues – Create cosy, intimate atmospheres with excellent acoustics.
✔ Modern Workspaces – Stylish yet functional, supporting both design and performance.

Sold per box / 20 ceiling tiles per box

Technical Specifications

Dimensions: 600 x 600 x 15mm (nominal – exact: 593 x 593mm)
Edge Detail: Square edge
Material: High-density glass wool core with painted finish
Finish Colour: Black (RAL9005)
Acoustic Performance: NRC 0.90, Class A
Fire Classification: A2-s1,d0 (EN 13964:2014)
Weight: 1.67 kg/m² / 12kg per box (20 tiles per pack)
Installation: Drop-in fit for standard suspended ceiling grid systems
Maintenance: Dust, vacuum, or gently wipe; do not wash with water

Delivery

Delivery lead times can be found on each product page. Once an order is processed, we’ll be in touch with your delivery date.

Our standard service is kerbside delivery. This means the driver will deliver to the nearest accessible point outside your property.
Off-loading, moving goods indoors, and disposing of packaging/pallets are the buyer’s responsibility.
If you require assistance beyond kerbside delivery, please contact us straight away – additional services may be available, though extra costs may apply.

At The Acoustics Store, we understand that circumstances may arise necessitating a product return or cancellation. Here’s a summary of our return and cancellations policy:

Customised or made-to-order items

Unfortunately, returns for customised or made-to-order items are not accepted unless they are reported as damaged upon delivery. For this, please refer to the Damages section.

To check if a product is customised or made-to-order, please check the product page.

Stock items

If you wish to return a stock item, please be aware that return shipping costs are your responsibility.

Prior to returning the product, kindly contact us for necessary instructions.

For further details, please consult our full terms and conditions or talk to a member of our team.

To check if a product is a stocked item, please check the product page.

Sample items

Please note that sample items are non-returnable.

Damages or faults

We work hard to ensure your products arrive in perfect condition, but transit-related damage can sometimes occur beyond our control.

To resolve any issues quickly, please inspect packages upon arrival. Note any packaging damage when signing for the delivery.

Inspect products for damage or defects promptly and inform us within 24 hours by email or phone in the unlikely event of any damage or defects.

To initiate a return, you can contact us with photos of the product and packaging.

We will aim to collect and replace the damaged items within the appropriate lead time indicated on the product page.

Cancellations

You can cancel your order within 24 hours of order placement. Simply contact us, and we’ll promptly process your cancellation and issue a refund if necessary.

Refunds will be processed within 5 working days.

Changing an order

If you need to change your order after making it, please contact us within 24 hours before your products are manufactured or dispatched.

For more detailed information regarding our comprehensive returns and cancellation visit terms and conditions or contact our friendly team, who will be eager to assist you.

Thank you for choosing The Acoustics Store as your preferred partner for your acoustic project needs. We appreciate your business and look forward to providing you with an exceptional customer experience.

Hear the Difference:

Without Acoustic Panels

With Acoustic Panels

Frequently Asked Questions

Each order of Petra™ Ceiling Tiles comes in boxes of 20 tiles. The tiles are designed for use with a standard suspended ceiling grid system and require no additional fixings. Installation is straightforward — simply place the tiles into the ceiling grid. Please note that the ceiling grid system is not included and must be purchased separately unless arranged otherwise.

We currently do not sell ceiling grid systems directly online, but we are working to include this option. If you require a ceiling grid for your Petra™ Ceiling Tiles, please contact us. Our team can recommend compatible systems and assist with sourcing, ensuring your installation process is smooth and efficient.

Petra™ Ceiling Tiles are designed to transform your environment by significantly reducing noise and echo. Their superior acoustic performance improves speech clarity, reduces distractions, and creates a calmer, more comfortable atmosphere. This makes them ideal for busy offices, schools, restaurants, healthcare facilities, and other professional environments where acoustic comfort is essential.

Currently, Petra™ Ceiling Tiles are available in standard shapes and sizes, with colour options in white or black. However, we understand that every project is unique, and bespoke options may be required. For larger-scale or specialist projects, we can explore custom shapes, sizes, and colours to meet your design needs. Please contact our team with your project details so we can provide tailored advice and availability.

Our Petra™ tiles are designed to fit standard suspended ceiling grids, including both square and tegular edge options. This compatibility makes installation simple and seamless while ensuring a polished, professional finish. For unusual or bespoke grid requirements, please consult our team for compatibility guidance.

Petra™ Ceiling Tiles have been tested in accordance with GB/T16731–1997 and deliver an impressive Noise Reduction Coefficient (NRC) of 0.90, which is equivalent to a Class A sound absorption rating — the highest level of acoustic performance available. This means they are highly effective at absorbing sound and reducing noise in busy environments.

Yes — Petra™ Ceiling Tiles feature a special paint coating that helps prevent dust accumulation. For optimal maintenance:

Regularly clean ventilation systems, as they are a primary source of dust, dirt, and oil contamination.
Do not wash tiles with excessive water or detergent.
For minor stains or fingerprints, gently scrub with an eraser.
Use a soft brush or vacuum with appropriate power to remove dust. Vacuum in the same direction as the surface pattern to avoid damaging the finish.
For fabric surfaces, dust and vacuum regularly. Spot clean with a damp sponge and mild detergent when necessary. Full washing is not recommended.
Cleaning is typically recommended every month to maintain appearance and performance.

Petra™ Ceiling Tiles are manufactured to precise tolerances. Each tile is slightly smaller than its nominal size to ensure a perfect fit in ceiling grids. For example:

Nominal size: 600×600 mm → Actual size: 593×593×15 mm

The tiles are 15mm thick, providing a balance between acoustic performance and aesthetic appeal.

Petra™ Ceiling Tiles meet the highest safety standards with a Reaction to Fire classification of GB 8624 A (A2-s1,d0). This ensures they are suitable for a wide range of commercial and public spaces.

No — Petra™ Ceiling Tiles come with a specially coated finish that cannot be painted without compromising their acoustic performance and surface integrity. If colour customisation is important for your project, please contact us to discuss bespoke colour options.

600×600 mm tiles: 20 tiles per box, covering 7.20 m² per box (0.36 m² per tile).
1200×600 mm tiles: 20 tiles per box, covering 14.40 m² per box (0.72 m² per tile).

There is no minimum order quantity for Petra™ Ceiling Tiles — they are sold per box.

With proper maintenance and care, Petra™ Ceiling Tiles are designed to deliver long-lasting acoustic performance and visual appeal for many years. Their durable construction and high-quality materials make them a reliable solution for both commercial and residential projects.

Do You Have Any Questions?

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