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PANEL GUIDE
What Are Sandwich Panel Dimensions?
Sandwich panel dimensions are determined according to application area, panel type, production line, transport limits and installation project.
Direct answer
Sandwich panel dimensions are determined according to application area, panel type, production line, transport limits and installation project.
Technical review: MDES Engineering Technical TeamUpdated: 2026-08-05
How is panel thickness selected?
Panel thickness is selected according to the required thermal insulation level, building type, climate zone and fire expectations. Thicker panels generally provide better thermal performance, but weight, cost and detail solutions should also be considered.
What does effective width mean?
Effective width is the actual working width covered by the panel after installation. The total production width and the effective width may differ because joint/locking details use a certain amount of width.
How is panel length determined?
Panel length is determined according to roof or facade span, structural grid, transportation possibilities and site installation conditions. For very long panels, handling, lifting and installation safety should be planned carefully.
Why is sheet thickness important?
Upper and lower metal facing thicknesses affect impact resistance, rigidity, fixing performance and service life. Suitable sheet thickness should be selected according to project loads and usage purpose.
Key points
- Thickness directly affects insulation performance.
- Effective width is important for quantity calculation.
- Panel length should be defined according to transport and installation conditions.
Frequently asked technical questions
How is panel thickness selected?
Panel thickness is selected according to the required thermal insulation level, building type, climate zone and fire expectations. Thicker panels generally provide better thermal performance, but weight, cost and detail solutions should also be considered.
What does effective width mean?
Effective width is the actual working width covered by the panel after installation. The total production width and the effective width may differ because joint/locking details use a certain amount of width.
How is panel length determined?
Panel length is determined according to roof or facade span, structural grid, transportation possibilities and site installation conditions. For very long panels, handling, lifting and installation safety should be planned carefully.
Which information is required for a sandwich panel quotation?
Specify the application, roof or wall type, core material, panel thickness, steel thicknesses, colour, total area, accessories, project location and delivery point. Fire and thermal performance must be confirmed against the project specification before ordering.
Technical references
- EN 14509 self-supporting double-skin insulating panels
- EN 13501-1 reaction-to-fire classification
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