Aluminum Honeycomb Panel-Why are there different thicknesses? The thickness of aluminum honeycomb panels can range from 5mm to 100mm. The commonly used thicknesses are 10mm, 12mm, 15mm, 18mm, 20mm, 25mm, 30mm, 50mm, 60mm, 70mm, 75mm and 100mm. The thickness of aluminum skin that can be matched with aluminum honeycomb panels is generally: 0.5mm, 0.7mm, 0.8mm and 1mm. We are a professional Chinese manufacturer of aluminum honeycomb panels with different thicknesses.