Ceiling Tile Sizes (UK) — The Complete 2025 Guide

Updated: August 11, 2025 • 10–12 minute read

Confused by 595×595 versus 600×600? Not sure which tiles you need for acoustics, fire, humidity, or that modern black studio look? This guide explains UK ceiling tile sizes, when to choose each type, and how to install or replace tiles—plus quick links to shop the right category.

1) Tile sizes explained: 595×595 vs 600×600 (& 1200×600)

In the UK, most suspended ceilings use modular tiles that sit in a 15 mm or 24 mm grid. You’ll see sizes listed as 595×595 mm (to suit a 600×600 mm module) or 600×600 mm (nominal). Both fit standard exposed grid systems.

• 595×595 mm — the actual tile size that drops into a 600×600 module.
• 600×600 mm — common shorthand/nominative size used in specs and buying guides.
• 1200×600 mm — rectangular modules for corridors and faster coverage.

Shopping by size? Browse 600×600 ceiling tiles or 1200×600 ceiling tiles.

2) Tile types & best uses

3) Fire & acoustic ratings (what matters & where)

• Fire performance: Always check the system specification (tile + grid + fixings + soffit details). Some tiles participate in 30–60 minute rated build‑ups when installed to the manufacturer’s tested detail. For high‑risk areas, ask our team for guidance.
• Acoustic performance: Look for sound absorption (αw / Class A–E) and sound attenuation (dB). For open offices and classrooms, higher absorption (often mineral wool/glass wool) helps reduce echo.

Need help matching a spec? Browse acoustic ranges or contact us for a rated system suggestion.

4) Kitchens, bathrooms & high humidity

In wet or high‑humidity locations (commercial kitchens, changing rooms, bathrooms), choose vinyl/wipeable surfaces and check humidity resistance. The smooth face cleans easily and resists staining. See Vinyl Ceiling Tiles.

5) Typical costs & how many tiles per box

• Everyday mineral tiles: commonly sold in boxes of 16 (600×600). Expect budget to mid‑range pricing depending on spec and finish.
• Vinyl/wipeable tiles: often supplied in boxes of 8–10 because of weight; great value for kitchens and washrooms.
• Premium acoustic or metal: per‑box count varies; pay for performance, durability, and aesthetics.

Ready to compare? Start with 600×600 or 1200×600.

6) How to identify & replace a ceiling tile (How‑To)

1. Photograph the existing tile (front pattern + back stamp, if any).
2. Check edge detail: Board (square), Tegular (24 mm reveal), Microlook (15 mm reveal).
3. Measure the module (opening in the grid): 600×600 or 1200×600.
4. Lift and tilt the damaged tile out of the grid (for lay‑in types). Use a removal tool for concealed/clip‑in metal systems.
5. Fit the replacement by tilting above the grid and lowering into place with the finished face down.

Short on time? Shop Replacement Ceiling Tiles or Black replacements if you’re upgrading the look.

Shop by size & type

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