What are the common sizes and specifications for galvanized perforated metal ceiling panels?
- Standard Sizes: 600×600mm, 600×1200mm; linear options include 300×1200mm.
- Maximum Size: Up to 1200×2400mm (larger sizes are not recommended due to steel weight and sagging).
- Thickness: 0.7-1.0mm for 600×600mm; 1.0mm preferred for 600×1200mm; ≥1.2mm with stiffeners for edges >1200mm.
- Perforation: Hole diameter Φ2-Φ6mm, open area 15-25%. (For acoustics, add non-woven fabric + glass wool backing).
